Now playing Next Mexico 'Incredible' treasure trove discovered under Chichen Itza in Mexico Archaeologists rediscovered a cave underneath Mexico’s most famous Mayan ruins, contending with a venomous snake and narrow crawlspaces to gain access. 05/03/2019
Now playing Next USA Attorney General Barr will not recuse himself from overseeing Mueller probe Democrats had raised concern about a memo Barr wrote in 2018, laying out why President Trump's firing of James Comey was not obstruction of justice. 05/03/2019
Now playing Next USA Police called to two London airports and rail hub over suspicious packages The packages were found in buildings near the airports and within Waterloo itself, although no services were affected. 05/03/2019
Now playing Next USA Ocasio-Cortez asks about condemning other offensive speech as Omar comes under fire The New York congresswoman said it's "hurtful" that "no one seeks this level of reprimand when members make statements about Latinx + other communities." 05/03/2019
Now playing Next USA Former Trump White House lawyer calls Mueller 'American hero' Cobb also disagreed with the president's assessment that the Russia investigation is a "witch hunt." 05/03/2019
Now playing Next USA A young U.S. entrepreneur's 'ultimate experiences' dream ends in tragedy Asher Burke "lived with fearless courage and a passion for experiencing all of life's adventures," his family said. 05/03/2019
Now playing Next USA House Democrats widen their investigation beyond Mueller's focus First Read is your briefing from "Meet the Press" and the NBC Political Unit on the day's most important political stories and why they matter. 05/03/2019
Now playing Next USA Over 1,500 exotic turtles found inside luggage in Philippines The 1,529 turtles were turned over to the Department of Environment and Natural Resources' Wildlife Traffic Monitoring Unit. 05/03/2019
Now playing Next USA Oregon Sen. Jeff Merkley passes on White House bid to seek re-election The two-term incumbent tells NBC News he feels he can be more effective in the Senate than by joining crowded presidential field. 05/03/2019
Now playing Next USA Pakistan warns Indian submarine near its territorial waters Tension escalated after India last week launched an airstrike inside Pakistan. Pakistan retaliated by downing two Indian fighter jets. 05/03/2019
Now playing Next USA A growing political scandal threatens Canada's Justin Trudeau The leader of the opposition Conservative Party called again for Trudeau to resign and for a police investigation. 05/03/2019
Now playing Next USA Spielberg's spat with Netflix taps into fight over the future of movies The powerful director reportedly wants new Academy Awards rules. But that's just one front in a bigger battle. 05/03/2019
Now playing Next USA HIV-positive man is 2nd known adult worldwide to be cleared of AIDS virus "There is no virus there that we can measure. We can't detect anything," said an HIV biologist who helped treat the man. 05/03/2019
Now playing Next View The Prodigy's Keith Flint was willing to be dangerous in an era of safe pop ǀ View A manic, charismatic performer, Flint was key to The Prodigy’s massive success. 05/03/2019
Now playing Next USA Stone's lawyers ask for permission to sell book already available online The book, called "The Myth of Russian Collusion," is an update of Stone's 2016 book about the election, with a new introduction that discusses the case. 05/03/2019
Now playing Next no comment Venezuelans set politics aside with dog costume contest Dogs and cats compete in a costume contest to choose a ‘King’ and ‘Queen’ of Carnival. 04/03/2019
Now playing Next USA Americans killed in Kenya helicopter crash were avid travelers Officials said the helicopter "lost control and crashed" shortly after leaving Lake Turkana Central Island on Sunday night. 04/03/2019
Now playing Next USA Trump associate Felix Sater sued by Mariah Carey's former manager Stella Stolper says Sater — who's scheduled to testify before the House — stole business and personal data using an "unauthorized backdoor" on her devices. 04/03/2019
Now playing Next USA States ready lawsuits to block new Trump administration abortion policy California Attorney General Xavier Becerra filed a challenge on Monday, while a coalition of other states said they would sue, as well. 04/03/2019
Now playing Next USA House Democrats demand documents on Trump-Putin talks The Washington Post reported in January that Trump personally intervened to hide details of a meeting with the Russian president. 04/03/2019
Now playing Next USA '90210' and 'Riverdale' actor Luke Perry dies aged 52 American actor Luke Perry has died aged 52 after suffering a stroke, his publicist said in a statement. 04/03/2019
Now playing Next USA McConnell: Senate likely to pass measure terminating Trump's national emergency The resolution, to be voted on later this month, "will then be vetoed by the president and then all likelihood the veto will be upheld in the House," the majority leader said Monday. 04/03/2019
Now playing Next USA Report: Trump ordered top adviser Cohn to block AT&T-Time Warner merger "I want that deal blocked!" Trump reportedly fumed to Gary Cohn and White House chief of staff John Kelly during an Oval Office meeting in 2017. But Cohn refused. 04/03/2019
Now playing Next USA Matthew Whitaker has left the Justice Department His next career move is unknown, but Whitaker has told friends that he will remain in Washington because there are "many opportunities here," sources said. 04/03/2019
Now playing Next Venezuela Watch again: Venezuelans demonstrate in Caracas as Guaido returns Guaido is risking arrest with his return after he ignored a court-imposed travel ban and toured Latin American countries to boost support for his campaign to oust Maduro. 04/03/2019
Now playing Next USA House Judiciary Committee launches investigation into potential Trump abuses Requests were sent to 81 individuals and entities, including the president's family, businesses and administration. 04/03/2019
