  >>> BREAKING NEWS 
  TONIGHT.
  THE HIGH STAKES NEW 
  IMPEACHMENT SHOWDOWN
  HOUSE DEMOCRATS MOVING
  THEIR INQUIRY TO A
  CRITICAL NEW PHASE
  THREE LEGAL EXPERTS 
  DECLARING PRESIDENT 
  TRUMP COMMITTED 
  IMPEACHABLE OFFENSES
  WITH HIS CONDUCT
  TOWARD UKRAINE
  >> IF WHAT WE ARE 
  TALKING ABOUT TODAY IS
  NOT IMPEACHABLE, THEN 
  NOTHING IS
  IMPEACHABLE.
  >> THE LONE WITNESS 
  FOR REPUBLICANS 
  DENOUNCING THE
  EVIDENCE AS WAFER 
  THIN, AND TONIGHT THE 
  PRESIDENT'S PERSONAL
  ATTORNEY RUDY GIULIANI
  BACK OVERSEAS.
  WHY WAS HE REPORTEDLY 
  MEETING WITH A FORMER 
  UKRAINIAN PROSECUTOR
  >>> ALSO BREAKING, THE
  SURPRISE OF A NATO
  SUMMIT
  PRESIDENT TRUMP 
  ABRUPTLY CANCELLING A 
  NEWS CONFERENCE AFTER 
  FELLOW WORLD LEADERS
  WERE CAUGHT ON A HOT
  MIC MOCKING HIM.
  THE FALLOUT TONIGHT.
  >>> NEW LAWSUIT.
  GEORGE ZIMMERMAN, 
  YEARS AFTER HE WAS
  ACQUITTED IN THE DEATH
  OF TRAYVON MARTIN NOW 
  SEEKING $100 MILLION
  FROM MARTIN'S PARENTS 
  AND OTHERS
  THE FAMILY'S REACTION 
  TONIGHT.
  >>> THE ALARMING
  HEADLINES ABOUT HAIR
  DYES AND STRAIGHTENERS
  AND THE RISK O
  BREAST CANCER.
  WHAT YOU NEED TO KNOW 
  TO PROTECT YOURSELF.
  >>> THE NEW WARNING 
  ABOUT PORCH PIRATES.
  THE FAMILY WHO TURNED 
  THE TABLES ON ONE 
  THIEF AND HOW TO KEEP 
  YOUR HOLIDAY PACKAGES 
  FROM BEING STOLEN.
  >>> AND THE ONE THING 
  IT SEEMS CONGRESS CAN 
  AGREE ON, STOPPING
  THOSE ANNOYING
  ROBOCALLS, BUT WILL 
  THE PLAN WORK?
  >> Announcer: THIS IS 
  "NBC NIGHTLY NEWS"
  WITH LESTER HOLT
  >>> GOOD EVENING AND
  THANK YOU FOR JOINING 
  US. 
  AS WE COME ON THE AIR 
  TONIGHT, THERE IS 
  BREAKING NEWS.
  LET'S GET LATE DETAILS
  FROM NBC'S STEVE
  PATTERSON.
  >> Reporter: LESTER,
  AUTHORITIES IN HAWAII 
  ARES CONFIRMING AN
  ACTIVE SHOOTER
  SITUATION IN PEARL
  HARBOR NAVAL SHIPYARD 
  IN HONOLULU.
  THE BASE ACCESS IS
  OPEN AS AUTHORITIES 
  INVESTIGATE WHAT
  HAPPENED
  TONIGHT, SHOTS FIRED
  AT PEARL HARBOR.
  THE NAVAL SHIPYARD
  LOCKED DOWN FOLLOWING 
  REPORTS OF THREE
  PEOPLE INJURED AFTER
  AN ACTIVE SHOOTER WAS 
  SPOTTED ON THE BASE.
  >> WE WANT TO KNOW
  WHAT'S GOING ON AND 
  HELP IF WE CAN
  >> Reporter: FIRST
  RESPONDERS WER
  CALLED TO THE SCENE AT
  2:30 LOCAL TIME.
  WITNESSES REPORT
  HEARING LOUD POPPING
  NOISES WHILE THE P.A. 
  SYSTEM URGES PEOPLE ON
  BASE TO TAKE COVER
  >> I'M HOPING FOR THE 
  BEST, I GUESS.
  >> Reporter: OUR
  AFFILIATE KHLN
  REPORTING THE 
  SITUATION ON THE BASE 
  IS NOW CONTAINED
  AND THAT HAPPENED JUST
  THREE DAYS BEFORE THE 
  78th ANNIVERSARY OF 
  THE ATTACK ON PEARL 
  HARBOR
  AT THIS TIME NO UPDATE
  ON THE CONDITION OF 
  THE INJURED.
  I'M STEVE PATTERSON IN
  LOS ANGELES.
  NOW BACK TO LESTER IN 
  NEW YORK
  >>> PRESIDENT TRUMP 
  RETURNING FROM THE U
  TONIGHT, LEAVING ONE
  HUMILIATION BEHIND
  ONLY TO FACE ANOTHER
  HERE AT HOME
  BEFORE LEAVING THE
  NATO MEETINGS IN
  LONDON, THE PRESIDENT 
  WAS MOCKED BY OTHER 
  WORLD LEADERS IN A HOT
  MIC MOMENT CAUGHT ON
  CAMERA
  THEN ABRUPTLY CALLING 
  OFF A SCHEDULED NEWS
  CONFERENCE
  AND AS HE WAS IN THE
  AIR, BACK ON CAPITOL
  HILL, A TRIO OF LEGAL 
  SCHOLARS WERE TELLING 
  DEMOCRATS EXACTLY WHAT
  THEY WANTED TO HEAR,
  THAT THE PRESIDENT HAS
  INDEED COMMITTED
  IMPEACHABLE OFFENSES
  AND THAT'S WHERE WE 
  START WITH NBC'S PETER
  ALEXANDER.
  >> Reporter: TONIGHT
  HOUSE DEMOCRATS 
  LEANING ON HISTORY TO 
  MAKE THEIR CASE FOR 
  IMPEACHING PRESIDENT
  TRUMP.
  >> IF WHAT WE'RE
  TALKING ABOUT IS NOT
  IMPEACHABLE, THEN 
  NOTHING IS
  IMPEACHABLE.
  >> Reporter: INVITING 
  A PANEL OF
  CONSTITUTIONAL
  SCHOLARS TO BOLSTER 
  THEIR INVESTIGATION.
  >> PRESIDENT TRUMP HAS
  COMMITTED IMPEACHABLE 
  HIGH CRIMES AND 
  MISDEMEANORS BY 
  CORRUPTLY ABUSING THE 
  OFFICE OF THE 
  PRESIDENCY
  >> WHAT HAS HAPPENED
  IN THE CASE TODAY IS
  SOMETHING THAT I DO 
  NOT THINK WE HAVE EVER
  SEEN BEFORE, A
  PRESIDENT WHO HAS 
  DOUBLED DOWN ON 
  VIOLATING HIS OATH TO 
  FAITHFULLY EXECUTE THE
  LAWS
  >> Reporter: THREE OF 
  THE DEMOCRATS' EXPERTS
  ARGUING THE 
  PRESIDENT'S ALLEGED 
  MISCONDUCT PRESSURING 
  UKRAINE'S LEADER T
  INVESTIGATE THE 
  PRESIDENT'S POLITICAL 
  RIVAL, JOE BIDEN, IS
  GROUNDS FOR REMOVAL.
  THE REPUBLICANS'
  LONE WITNESS
  DISMISSING THE
  DEMOCRATS' CASE AS
  WAFER-THIN
  >> I'M CONCERNED ABOUT
  LOWERING IMPEACHMENT
  STANDARDS TO FIT A
  PAUCITY OF EVIDENCE 
  AND AN ABUNDANCE OF 
  ANGER.
  >> Reporter: DEMOCRATS
  EMPHASIZING THE 
  URGENCY FOR ACTION
  >> IF WE DO NOT ACT TO
  HOLD HIM IN CHECK NOW,
  PRESIDENT TRUMP WILL
  ALMOST CERTAINLY TRY
  AGAIN TO SOLICIT
  INTERFERENCE IN THE 
  ELECTION. 
  >> Reporter: BUT THE
  TOP REPUBLICAN DOUG 
  COLLINS APPEARING 
  EXASPERATED, ATTACKED 
  THE INQUIRY AS A
  PARTISAN SHAM.
  >> IT DIDN'T START
  WITH MUELLER
  IT DIDN'T START WITH A
  PHONE CALL
  YOU KNOW WHERE THIS 
  STARTED?
  IT STARTED WITH TEARS 
  IN BROOKLYN IN
  NOVEMBER 2016.
  >> Reporter: WITH 
  DEMOCRATS EYEING AN 
  IMPEACHMENT VOTE
  BEFORE CHRISTMAS, 
  REPUBLICANS SAY 
  THEY'RE FOCUSING ON 
  THE CALENDAR, NOT THE 
  FACTS.
  >> THIS IS A FAST 
  IMPEACHMENT.
  I WOULD ARGUE IT'S NOT
  A FAST IMPEACHMENT
  IT'S A PREDETERMINED
  IMPEACHMENT.
  >> Reporter: THE TONE 
  NOT ALWAYS SCHOLARLY
  PROFESSOR PAMELA
  KARLAN TAKING OFFENS
  TO THE REPUBLICANS' 
  ASSERTION THE EXPERTS 
  HAVE NOT DONE THEIR 
  HOMEWORK. 
  >> I WOULD LIKE TO SAY
  TO YOU, SIR, THAT I 
  READ TRANSCRIPTS OF 
  EVERY ONE OF THE
  WITNESSES.
  I'M INSULTED BY THE 
  SUGGESTION THAT AS A
  LAW PROFESSOR, I DON'T
  CARE ABOUT THOSE
  FACTS.
  >> Reporter: LATER, 
  KARLAN DRAWING
  CRITICISM FOR INVOKING
  PRESIDENT TRUMP'S 
  13-YEAR-OLD SON TO
  MAKE HER POINT THAT A 
  PRESIDENT IS NOT A
  KING
  >> THE CONSTITUTION 
  SAYS THERE CAN BE NO
  TITLES OF NOBILITY
  SO WHILE THE PRESIDENT
  CAN NAME HIS SON
  BARRON, HE CAN'T MAKE 
  HIM A BARON.
  >> Reporter: THE FIRST
  LADY TWEETING, PAMELA 
  KARLAN, YO
  SHOULD BE ASHAMED.
  KARLAN LATER
  APOLOGIZING.
  >> I WANT TO APOLOGIZE
  FOR WHAT I SAID 
  EARLIER ABOUT THE 
  PRESIDENT'S SON.
  IT WAS WRONG OF ME TO 
  DO THAT.
  >> Reporter: ALL OF IT
  COMING AS RUDY
  GIULIANI, THE 
  PRESIDENT'S PERSONAL
  LAWYER ALREADY UNDER
  SCRUTINY FOR HIS ROLE 
  IN THE PRESSURE 
  CAMPAIGN ON UKRAINE IS
  BACK IN EASTERN 
  EUROPE
  ACCORDING TO "THE NEW 
  YORK TIMES," MEETING
  WITH AN OUSTED
  UKRAINIAN PROSECUTOR
  AS GIULIANI AGAIN 
  TRIES TO DIG UP DIRT
  ON THE PRESIDENT'S
  POLITICAL RIVALS
  >> ALL RIGHT, PETER,
  SO WHAT'S NEXT IN THIS
  IMPEACHMENT PROCESS?
  >> Reporter: YEAH,
  LESTER, AFTE
  TODAY'S MARATHON
  HEARING,
  HOUS
  DEMOCRATS ARE TRYING
  TO KEEP TO A SHORT
  TIMELINE TO REVIEW THE
  EVIDENCE, DRAFT 
  ARTICLES OF 
  IMPEACHMENT, AND VOTE,
  ALL IN THE NEXT TWO 
  AND A HALF WEEKS
  LESTER
  >> PETER ALEXANDER AT 
  THE WHITE HOUSE, THANK
  YOU.
  AND FOR HIS PART, THE 
  PRESIDENT HOPED HIS 
  TRIP TO THE NATO
  SUMMIT WOULD FOCUS
  ATTENTION ON HIS
  FOREIGN POLICY
  PRIORITIES AS THE 
  IMPEACHMENT DRAMA 
  PLAYED OUT AT HOME
  INSTEAD, THERE WAS
  ONLY MORE CONTROVERSY 
  IN LONDON.
  KRISTEN WELKER IS 
  THERE TONIGHT.
  >> Reporter: TONIGHT
  WHILE OTHER WORLD 
  LEADERS WERE HOLDING
  CLOSING PRESS 
  CONFERENCES, PRESIDENT
  TRUMP WAS LEAVING 
  LONDON IN DRAMATIC
  FASHION, ABRUPTLY 
  CANCELLING A PLANNED
  NEWS CONFERENCE,
  SURPRISING EVEN HIS 
  OWN STAFF WHEN HE 
  ANNOUNCED THE NEWS
  HIMSELF.
  >> THERE IS NO REASON 
  TO HAVE PRESS 
  CONFERENCES BECAUSE 
  WE'VE HAD ABOUT EIGHT 
  OF THEM.
  SO I CAN'T IMAGINE
  YOU'D HAVE ANY MORE 
  QUESTIONS.
  >> Reporter: THE MOVE 
  CAME AFTER STUNNING 
  VIDEO EMERGED 
  OVERNIGHT.
  SOME OF AMERICA'S 
  CLOSEST ALLIES CAUGHT 
  ON VIDEO AT BUCKINGHAM
  PALACE MOCKING HIM
  IN ONE PART, CANADIAN 
  PRIME MINISTER JUSTIN 
  TRUDEAU, WHO MET WITH 
  THE PRESIDENT FOR OVER
  HALF AN HOUR TUESDAY, 
  CAN BE HEARD VENTING
  ABOUT SOMEONE'S 
  TARDINESS.
  >> TAKES 40 MINUTES.
  >> Reporter: THE
  PRESIDENT TOOK
  AIM AT TRUDEAU WHEN 
  ASKED ABOUT THE VIDEO 
  TODAY, NOTING HE HAD
  CRITICIZED CANADA FOR 
  NOT CONTRIBUTING MORE 
  TO THE NATO DEFENSE 
  BUDGET
  >> TWO-FACED
  >> DO YOU THINK THAT
  GERMANY --
  >> AND HONESTLY, WITH 
  TRUDEAU, HE IS A NICE 
  GUY.
  I FIND HIM TO BE A
  VERY NICE GUY.
  BUT THE TRUTH IS THAT 
  I CALLED HIM OUT ON 
  THE FACT THAT HE IS 
  NOT PAYING 2%, AND I
  GUESS HE IS NOT VERY
  HAPPY ABOUT IT
  >> Reporter: AND LATER
  MR. TRUMP APPEARED TO 
  COMPLIMENT HIMSELF FOR
  THAT REMARK IN
  COMMENTS THAT WERE
  CAPTURED ON AUDIO.
  >> THAT WAS FUNNY WHEN
  I SAID THE GUY IS 
  TWO-FACED.
  >> Reporter: FOR HIS
  PART, TRUDEAU TRIED TO
  DOWNPLAY ANY DIVISION.
  >> LAST NIGHT I MADE A
  REFERENCE TO THE FACT 
  THAT THERE WAS AN 
  UNSCHEDULED PRESS 
  CONFERENCE BEFORE MY
  MEETING WITH PRESIDENT
  TRUMP, AND I WAS HAPPY
  TO TAKE PART OF IT, 
  BUT IT WAS CERTAINLY
  NOTABLE.
  AND I'VE HAD A NUMBER 
  OF GOOD CONVERSATIONS 
  WITH THE PRESIDENT
  OVER THE COURSE OF
  THIS DAY AND
  YESTERDAY.
  >> Reporter: FOR
  PRESIDENT TRUMP, THE
  TRIP WAS AIMED AT 
  TURNING THE PAGE AT 
  LEAST TEMPORARILY AWAY
  FROM THE IMPEACHMENT
  INQUIRY, BUT INSTEAD
  SPARKING NEW
  CONTROVERSIES ON THE
  WORLD STAGE.
  AND TONIGHT PRESIDENT 
  TRUMP IS DEFENDING HIS
  RELATIONSHIPS WITH
  NATO LEADERS, TWEETING
  FROM AIR FORCE ONE
  THAT HE GOT ALONG 
  GREAT WITH THEM AND 
  THAT THERE IS ONLY
  DEEP RESPECT
  HE RETURNED TO THE
  WHITE HOUSE LATE
  TONIGHT.
  LESTER
  >> KRISTEN WELKER IN
  LONDON TONIGHT, THANK 
  YOU.
  >>> ONE ISSUE LOOMING 
  THIS EVENING IN THE 
  BACKGROUND OF THAT
  SUMMIT, IS THERE A NEW
  THREAT ON THE HORIZON 
  FROM NORTH KOREA
  THE SIGNALS, INCLUDING
  NORTH KOREA'S LEADER
  RIDING A HORSE, A 
  POTENTIALLY SYMBOLIC
  ACT, DRAWING A STRONG 
  WARNING FROM PRESIDENT
  TRUMP.
  RICHARD ENGEL 
  EXPLAINS
  >> Reporter: MOUNTED
  ON A WHITE STEED, 
  NORTH KOREA'S KIM 
  JONG-UN ASCENDED THE
  SLOPES OF HIS 
  COUNTRY'S HIGHEST 
  MOUNTAIN
  á
  THE WHITE HORSE IS A
  SYMBOL OF THE KIM 
  FAMILY, USED BY THE 
  COUNTRY'S FOUNDER.
  THE MOUNTAIN TOO IS 
  STEEPED IN KIM FAMILY 
  LORE
  SO BY GOING THERE,
  LIKE THIS, KIM JONG-UN
  IS SIGNALING THAT HE'S
  CONTEMPLATING A BIG 
  DECISION THAT LIKELY
  HAS TO DO WITH THE
  UNITED STATES.
  PRESIDENT TRUMP IN
  LONDON SEEMED TO
  THREATEN KIM JONG-UN. 
  >> WE HAVE THE MOST 
  POWERFUL MILITARY 
  WE'VE EVER HAD, AND 
  HOPEFULLY WE DON'T
  HAVE TO USE IT, BUT IF
  WE DO, WE'LL USE IT.
  >> Reporter: PRESIDENT
  TRUMP HAS MET KIM 
  JONG-UN THREE TIMES,
  MOST RECENTLY AND MOST
  DRAMATICALLY THE
  PRESIDENT STEPPED IN
  TO NORTH KOREAN 
  TERRITORY.
  IN EXCHANGE FOR 
  DIPLOMACY, NORTH KOREA
  HAS SCALED BACK THE 
  TESTING OF ITS MOST 
  POWERFUL WEAPONS
  BUT NORTH KOREAN
  OFFICIALS SAY THE 
  COUNTRY WON'T PLAY
  POLITICAL GAMES 
  ANYMORE THAT BENEFIT
  PRESIDENT TRUMP 
  DOMESTICALLY WHILE NO 
  PROGRESS HAS BEEN MADE
  TO LIFT ECONOMIC
  SANCTIONS ON NORTH
  KOREA.
  APPARENTLY FEELING
  USED AS A POLITICAL 
  PROP, A NORTH KOREAN
  OFFICIAL WARNED THAT
  AMERICA MAY EXPECT, 
  QUOTE, A CHRISTMAS
  GIFT, INTERPRETED TO
  MEAN EITHER A MISSILE 
  OR EVEN A NUCLEAR 
  TEST
  LESTER
  >> RICHARD ENGEL
  TONIGHT, THANK YOU
  >>> THIS EVENING, 
  NEARLY 700,000 PEOPLE 
  IN THIS COUNTRY ARE ON
  THE VERGE OF LOSING 
  FOOD STAMPS AFTER THE 
  TRUMP ADMINISTRATION
  FINALIZED A RULE
  ENFORCING WORK
  REQUIREMENTS FOR
  ADULTS WHO DON'T HAVE 
  CHILDREN
  THE NEW RULE REQUIRING
  20 HOURS OF WORK A
  WEEK WAS DENOUNCED BY 
  ANTI-POVERTY GROUPS 
  AND IS SET TO TAKE
  EFFECT APRIL 1
  >>> IT WAS AN 
  EXPLOSIVE MOMENT IN 
  RACE RELATIONS
  THE 2012 SHOOTING IN
  FLORIDA OF A BLACK
  TEENAGER, TRAYVON 
  MARTIN, BY A
  NEIGHBORHOOD WATCH
  VOLUNTEER, GEORGE 
  ZIMMERMAN, WHO WAS
  LATER ACQUITTED OF
  HOMICIDE CHARGES
  WELL, TODAY ZIMMERMA
  FILED A $100 MILLION
  LAWSUIT AGAINST 
  MARTIN'S FAMILY AND 
  OTHERS INVOLVED IN THE
  CASE
  KERRY SANDERS HAS 
  DETAILS.
  >> Reporter:
  17-YEAR-OLD TRAYVON 
  MARTIN'S DEATH
  LAUNCHED A NATIONAL 
  MOVEMENT
  CHARGED WITH MURDER IN
  THE SHOOTING DEATH WAS
  GEORGE ZIMMERMAN, AN
  ARMED VOLUNTEER ON
  NEIGHBORHOOD WATCH
  ZIMMERMAN CALLED 911
  AND SAID MARTIN SEEMED
  SUSPICIOUS AND
  FOLLOWED THE TEEN AS
  HE WALKED HOME THROUGH
  HIS CENTRAL FLORIDA 
  NEIGHBORHOOD
  >> ARE YOU FOLLOWING
  HIM?
  >> YEAH.
  >> OKAY, WE DON'T NEED
  YOU TO DO THAT. 
  >> Reporter: ZIMMERMAN
  CLAIMED SELF-DEFENSE, 
  AND IN 2013, A JURY 
  ACQUITTED ZIMMERMAN ON
  ALL CHARGES.
  THE KEY WITNESS FOR 
  THE PROSECUTION WAS 
  RACHEL JEANTEL, 
  TRAYVON MARTIN'S
  GIRLFRIEND. 
  >> AND THEN SUDDENLY
  THE PHONE HUNG UP.
  >> Reporter: IN THE 
  DEFAMATION SUIT FILED 
  TODAY, ZIMMERMAN
  CLAIMS RACHEL JEANTEL 
  WAS AN IMPOSTOR AND 
  FAKE WITNESS WHO
  PROVIDED FALSE
  STATEMENTS TO 
  INCRIMINATE ZIMMERMAN.
  AND IN A NEW FILM 
  PRODUCER JOE
  GILBERT SAYS HE FOUND 
  THE REAL GIRLFRIEND 
  WHO WAS UNWILLING TO
  TESTIFY.
  >> I FOUND TRAYVON'S
  REAL GIRLFRIEND.
  >> Reporter: TONIGHT
  RACHEL JEANTEL'S
  ATTORNEY TELLS NBC
  NEWS IN PART HER
  TESTIMONY AT TRIAL WAS
  ACCURATE
  IN A STATEMENT, 
  TRAYVON MARTIN'S
  FAMILY ATTORNEY BEN 
  CRUMP SAYS
  MARTIN'S FAMILY CALLED
  THIS AN UNFOUNDED AND 
  RECKLESS LAWSUIT
  ATTORNEY LARRY
  CLAYMAN, FOUNDER OF 
  THE CONSERVATIVE LEGAL
  FOUNDATION JUDICIAL 
  WATCH, FILED
  THE LAWSUIT ON BEHALF 
  OF ZIMMERMAN
  MEANTIME, THE FILM, 
  "THE TRAYVON HOAX" WAS
  SCHEDULED TO PLAY HERE
  TOMORROW, BUT NOW THE 
  THEATER HAS CANCELED
  ITS SCREENING.
  LESTER
  >>> THERE IS NEWS 
  TONIGHT ABOUT 
  POTENTIAL CANCER RISKS
  FOR ONE IN THREE
  AMERICAN WOMEN WHO DYE
  OR STRAIGHTEN THEIR 
  HAIR
  A LARGE NEW FEDERAL 
  STUDY SUGGESTS THERE
  COULD BE A LINK TO
  BREAST CANCER.
  WE GET MORE FROM NBC'S
  KRISTEN DAHLGREN
  >> Reporter: TONIGHT
  NEW CONCERNS OVER HAIR
  DYES AND CHEMICAL 
  STRAIGHTENERS.
  A STUDY OF ALMOST 
  50,000 WOMEN FOUND A
  9%
  INCREASED RISK OF 
  CANCER FOR THOSE WHO
  USE A PERMANENT HAIR
  DYE AND AN 18%
  INCREASED RISK FOR
  THOSE WHO USE 
  STRAIGHTENERS.
  THE NUMBERS WENT UP 
  FOR THOSE WHO USE THE 
  PRODUCTS MORE 
  FREQUENTLY AS WELL AS 
  FOR AFRICAN-AMERICAN
  WOMEN WHO HAD A 45% 
  INCREASED RISK IF THEY
  USED PERMANENT DYE
  >> IT'S POSSIBLE THE
  PRODUCTS MARKETED TO
  BLACK WOMEN BASED ON
  THEIR HAIR TEXTURE AND
  TYPE MIGHT BE 
  DIFFERENT THAN THE
  PRODUCTS MARKETED 
  TOWARDS WHITE WOMEN.
  >> Reporter: THE
  RESEARCH CAN'T SAY
  DYES AND STRAIGHTENERS
  CAUSE CANCER BUT
  EXPERTS SAY THE MORE
  THAN 5,000 CHEMICALS
  IN HAIR PRODUCTS COULD
  BE ONE FACTOR.
  >> SOME OF THEM, WHICH
  WE CALL ENDOCRINE 
  DISRUPTERS, CAN ENTER 
  INTO THE BLOODSTREAM
  AND GO TO THE BREAST
  TISSUE, DAMAGE DNA, 
  AND THEREBY INCREASE
  THE RISK OF CANCER
  >> Reporter:
  THE STUDY'S AUTHORS 
  CAUTION MORE RESEARCH 
  IS NEEDED AN
  SAY IT'S
  NOT TIME TO STOP USING
  DYES AND
  STRAIGHTENERS.
  >> A LOT OF FACTORS 
  INFLUENCE A WOMEN'S 
  RISK OF BREAST CANCER 
  INCLUDING THEIR WEIGHT
  AND THEIR DIET AND
  THEIR PHYSICAL
  ACTIVITY
  >> Reporter: THE STUDY
  FOUND NO INCREASED
  RISKS FOR SEMI
  PERMANENT DYES
  EXPERTS SAY YOU CAN 
  ALSO WEAR GLOVES, 
  DON'T LEAVE PRODUCTS
  ON YOUR HEAD FOR
  LONGER THAN THE 
  DIRECTIONS SAY, AND 
  ALWAYS RINSE YOUR 
  SCALP THOROUGHLY
  TONIGHT, WORDS OF 
  CAUTION FOR THE 
  MILLIONS WHO COLOR OR 
  STRAIGHTEN THEIR HAIR.
  KRISTEN DAHLGREN, NBC 
  NEWS, NEW YORK
  >>> THERE IS BREAKING 
  NEWS ON THE 
  CONTROVERSY INVOLVING 
  THE HIT NBC SHOW
  "AMERICA'S GOT
  TALENT."
  THE NETWORK MEETING 
  WITH GABRIELLE UNION
  WHO LEFT
  THE SHOW AMID REPORTS 
  OF A TOXIC WORK 
  ENVIRONMENT.
  NBC'S STEPHANIE GOSK
  HAS DETAILS.
  >> Reporter: TONIGHT
  GABRIELLE UNION,
  FORMER JUDGE ON 
  "AMERICA'S GOT
  TALENT," SAYS SHE MET 
  WITH NBC AND THE
  REALITY SHOW'S
  PRODUCTION COMPANY
  RECENT REPORTS
  REVEALED THAT HE
  CONTRACT WAS NOT
  RENEWED AFTER SHE MADE
  MULTIPLE COMPLAINTS 
  ABOUT A TOXIC WORK
  ENVIRONMENT ON SET
  WE HAD A LENGTHY
  FIVE-HOUR AND WHAT I
  THOUGHT TO BE 
  PRODUCTIVE
  MEETING YESTERDAY, SHE
  WRITES
  I WAS ABLE TO 
  EXPRESS MY UNFILTERED 
  TRUTH.
  I LED WITH
  TRANSPARENCY AND MY 
  DESIRE AND HOPE FOR 
  REAL CHANGE.
  NBC ISSUING THIS
  STATEMENT.
  THE INITIAL 
  CONVERSATION WAS
  CANDID AND PRODUCTIVE.
  WHILE THERE WILL BE A 
  FURTHER INVESTIGATION 
  TO GET A DEEPER 
  UNDERSTANDING OF THE
  FACTS, WE ARE WORKING 
  WITH GABRIELLE TO COME
  TO A POSITIVE 
  RESOLUTION
  BOTH THE NETWORK AND
  THE SCREEN ACTORS 
  GUILD ARE 
  INVESTIGATING AFTER 
  "VARIETY" REPORTED
  EARLIER THIS WEEK THAT
  UNION EXPERIENCED 
  RACIALLY INSENSITIVE
  INCIDENTS INCLUDING 
  BEING TOLD HER HAIR 
  STYLES WERE, QUOTE, 
  TOO BLACK FOR TH
  AUDIENCE
  BOTH UNION AND
  THE ONLY OTHER FEMALE 
  JUDGE ON THE PANEL, 
  JULIANNE HOUGH, DID 
  NO
  HAVE THEIR CONTRACTS
  RENEWED, WHICH
  TRIGGERED FORMER JUDGE
  HOWARD STERN TO SAY 
  THIS ABOUT SIMON
  COWELL, THE SHOW'S
  EXECUTIVE PRODUCER
  >> WHAT HE MANAGES TO 
  DO ON ALL HIS SHOWS IS
  HE CONSTANTL
  REPLACES THE HOT
  CHICKS WITH HOTTER
  CHICKS AND YOUNGER
  CHICKS, WHICH IS SO 
  OBVIOUS.
  >> Reporter: SO FAR 
  UNION HAS NOT SPOKEN
  PUBLICLY ABOUT THE
  ALLEGATIONS, WHILE A
  LONG LIST OF FELLOW 
  ACTORS HAVE LINED UP
  TO SUPPORT HER
  STEPHANIE GOSK, NBC 
  NEWS
  >>> THERE'S A LOT MORE
  TO TELL YOU ABOUT.
  AHEAD, THE NUMBER OF
  PACKAGES GETTING
  STOLEN AHEAD OF THE 
  HOLIDAY RUSH
  HOW ONE FAMILY TURNED 
  THE TABLES
  >>> AND THE INCESSANT 
  BARRAGE OF ROBOCALLS
  IS REAL RELIEF FINALLY
  ON THE WAY
  A MAJOR NEW STEP TODAY
  WE'LL TELL YOU ABOUT
  >>> AND INSIDE THE
  MAGIC AS THE ROCK 
  CENTER TREE IS LIT
  STAY WITH US
  >>> NEXT TONIGHT, 
  THERE IS AN 
  ASTONISHING EPIDEMIC
  OF PACKAGE THEFTS 
  GOING ON ALL ACROSS 
  THE COUNTRY, MILLIONS 
  OF THEM.
  MIGUEL ALMAGUER 
  TONIGHT ON HOW SOME 
  ARE FIGHTING BACK.
  >> Reporter: FASTER 
  THAN THEY ARRIVE, 
  PACKAGES CAN
  DISAPPEAR.
  TONIGHT PORCH PIRATES 
  ACROSS THE COUNTRY ARE
  STRIKING AS A RECORD
  NUMBER OF CYBER MONDAY
  DELIVERIES
  ARE BEING MADE
  CAPTURED ON CAMERA BUT
  NOT ALWAYS BY POLICE, 
  "THE NEW YORK TIMES"
  SAYS NATIONWIDE MORE
  THAN 1.7 MILLION
  PACKAGES ARE STOLEN OR
  GO MISSING EVERY DAY
  90,000 IN NEW YORK
  CITY ALONE
  AN ASTONISHING $25
  MILLION IN LOST GOODS 
  AND SERVICES ACROSS 
  THE COUNTRY.
  >> IT JUST FELT GOOD
  TO FEEL LIKE WE GOT 
  SOME SORT OF JUSTICE
  >> Reporter: NEAR ST. 
  LOUIS, ONE FAMILY WHO 
  WANTS TO REMAIN 
  ANONYMOUS FOUGHT BACK 
  AFTER THEY SAY THIS 
  WOMAN TOOK THEIR
  PACKAGES TWICE
  HOMEOWNERS LEAVING A
  PACKAGE FULL OF DIRTY 
  DIAPERS WHICH WAS 
  STOLEN THE NEXT DAY.
  >> SHE GOT THE SPECIAL
  SURPRISE FROM MY
  DAUGHTER
  >> Reporter: WITH 
  PORCH PIRATES ON THE
  PROWL, SOME POLICE
  STATIONS ARE OFFERING 
  TO ACCEPT PACKAGES
  UNDER THEIR CHRISTMAS 
  TREE
  >> WE HOLD THEM HERE
  SAFE
  THAT DEFINITELY 
  RELIEVES A LOT OF 
  ANXIETY FOR OUR 
  CITIZENS
  >> Reporter: THERE ARE
  WAYS TO ENSURE YOU GET
  WHAT YOU PAID FOR.
  SIGN UP TO TRACK YOUR 
  PACKAGES
  REQUIRE A SIGNATURE ON
  DELIVERY
  AND IF YOU CAN, GET 
  THEM SENT SOMEWHERE 
  SECURE LIKE YOUR
  OFFICE
  THIS HOLIDAY SEASON,
  IT IS GOOD TO GIVE
  BUT ALSO TO RECEIVE.
  MIGUEL ALMAGUER, NBC
  >>> EVEN AS THE 
  IMPEACHMENT BATTLE
  DIVIDES WASHINGTON, 
  TODAY LAWMAKERS FOUND 
  COMMON GROUND ON
  SOMETHING.
  VICKY NGUYEN EXPLAINS.
  >> Reporter:
  POLITICIANS ON BOTH 
  SIDES AGREEING ON ONE 
  THING TONIGHT.
  THEY HATE ROBOCALLS.
  >> PRESS 1 NOW
  >> Reporter: UNITING
  TO PASS A BIPARTISAN
  BILL
  >> TODAY THE HOUSE IS 
  GIVING AMERICANS BACK 
  CONTROL OF THEIR
  PHONES
  >> Reporter: CRACKING 
  DOWN ON THE ANNOYING
  AUTOMATED CALLS.
  >> THERE'S ONE THING
  IN OUR COUNTRY TODAY
  THAT UNITES 
  REPUBLICANS AND 
  DEMOCRATS, VEGETARIANS
  AND CARNIVORES, IS
  THAT THEY ARE SICK AND
  TIRED OF BEING
  BOMBARDED BY UNWANTED 
  ROBOCALLS.
  >> Reporter: AMERICANS
  HAVE ALREADY BEEN HIT 
  WITH MORE THAN 49 
  BILLION OF THEM THIS
  YEAR
  AT WORK, DINNER TIME, 
  EVEN THE MIDDLE OF THE
  NIGHT.
  >> STARTING AT 1:15 
  A.M. MY PHONE STARTED 
  RINGING INCESSANTLY.
  >> Reporter: THE
  TRACED ACT REQUIRES 
  PHONE COMPANIES TO
  VERIFY WHERE CALLS ARE
  COMING FROM AND LET 
  CONSUMERS BLOCK THEM, 
  ENFORCES HARSHER
  PENALTIES, AND TARGETS
  THE ONE-RING SCAM 
  WHERE CONSUMERS GET 
  ONE RING FROM A FAKE
  NUMBER AND WHEN THEY
  CALL BACK ARE OFTEN 
  HIT WITH HEFTY FEES.
  THE BILL IS EXPECTED
  TO CLEAR THE
  SENATE
  AND RECEIVE THE 
  PRESIDENT'S SUPPORT 
  WITH NO HANGUPS.
  VICKY NGUYEN, NBC 
  NEWS, NEW YORK
  >>> UP NEXT WE GO 
  OUTSIDE FOR AN
  ELECTRIFYING HOLIDAY
  >>> WELCOME BACK
  AS YOU CAN SEE, A BIG 
  NIGHT, A BIG CROWD FOR
  THE LIGHTING OF THE 
  ROCKEFELLER CENTER
  CHRISTMAS TREE
  OUR GADI SCHWARTZ 
  TAKES US ON THE LONG
  JOURNEY TO THE TREE'S 
  BIG NIGHT HERE
  >> Reporter: WHEN 
  CAROL SCHULTZ PLANTED 
  HER NORWAY SPRUCE 60
  YEARS AGO, SHE KNEW IT
  WAS DESTINED FOR
  GREATNESS.
  >> I ALWAYS SAID, 
  YOU'RE GOING TO BE UP 
  IN ROCKEFELLER CENTER 
  SOME DAY, AND YOU'RE
  GOING TO BE A 
  BEAUTIFUL TREE WHEN 
  YOU GET OLDER.
  >> Reporter: AS SOON
  AS HER TREE WAS CHOSEN
  AND BROUGHT TO THE BIG
  CITY, PEOPLE COULDN'T 
  GET ENOUGH
  >> WHAT DO YOU THINK
  >> AMAZING
  >> Reporter: DOWN 
  BELOW, THE RENOWNED 
  ARCHITECT OVERSEES THE
  PLACEMENT OF 3
  MILLION CRYSTALS
  >> IT'S ALWAYS
  REPRESENTED PEACE,
  HOPE, AND HUMANITY
  >> Reporter: FOR A
  CLOSER LOOK, WE HEADED
  SEVEN STORIES UP
  >> YOU KNOW WHAT IT 
  SMELLS LIKE HERE
  IT SMELLS LIKE
  CHRISTMAS.
  >> Reporter:
  FOR WEEKS ELECTRICIANS
  HAVE BEEN STRINGING UP
  50,000 LIGHTS, AND
  5,000 MILE
  OF WIRES TO MAKE SURE 
  EVERYTHING IS PERFECT.
  THIS STAR IS ABOUT TO 
  BECOME THE CENTER OF
  THE NEW YORK UNIVERSE.
  BEFORE WE LIGHT IT UP,
  WE HAVE TO HEAD DOWN
  SO THE SCAFFOLD CAN 
  COME DOWN TOO.
  AS THE FINAL TOUCHES
  ARE SET,
  CAROL SCHULTZ IS READY
  FOR THE MEMORY SHE'S
  BEEN WAITING MORE THAN
  HALF A CENTURY TO 
  SHARE.
  >> WHEN I SEE THE TREE
  LIT UP, I'M PROBABLY
  GOING TO CRY
  MY HOPE IS THAT IT
  WILL
  BRING HAPPINESS TO
  PEOPLE
  I HOPE THEY ENJOY IT
  >> Reporter: LESTER,
  INCREDIBLY, THAT WAS
  THE SAME TREE IN
  CAROL'S LIVING ROOM.
  SHE LOVED IT SO MUCH
  AFTER CHRISTMAS, SHE
  PLANTED IT AND VOILA
  >> AND NOW A TREE 
  GROWS IN MANHATTAN
  GADI, THANKS
  A REMINDER, "CHRISTMAS
  IN ROCKEFELLER CENTER"
  AIRS TONIGHT ON NBC.
  I'M LESTER HOLT.
  I'M LESTER HOLT.
  THAT'S "NIGHTLY NEWS."
  GOOD NIGHT, EVERYONE
