Now playing Next USA Italians mourn officer killed in stabbing as two U.S. teens remain in custody As the two Americans remain in Italian prison, mourners gather in Rome on Monday to pay their respects to killed officer Mario Cerciello Rega. 29/07/2019
Now playing Next World News Three dead, plus suspect, in shooting at at California festival Authorities said a gunman appeared to have cut a fence into the festival. Police said a second possible suspect was being sought. 29/07/2019
Now playing Next Italy Watch again: Italian policeman mourned in US murder suspect probe Italian police investigate picture of blindfolded US murder suspect as hundreds gathered to mourn the policeman allegedly murdered by two American teenagers . 28/07/2019
Now playing Next USA Trump continues attacks on Cummings, Baltimore Sunday's outburst came a day after the president tweeted that "no human being would want to live" in Baltimore. 28/07/2019
Now playing Next USA 'Once Upon a Time in Hollywood' marks Bruce Lee's posthumous comeback The martial arts legend wasn't fully appreciated by Hollywood in his day, but a new generation of actors like Mike Moh give thanks to his legacy. 28/07/2019
Now playing Next USA How AI is helping hospitals save their sickest patients Early tests show artificial "assistants" can help doctors and nurses spot potentially deadly problems in time to take life-saving action. 27/07/2019
Now playing Next USA Twitter erupts over KLM airline's breastfeeding policy The Dutch airline is feeling the wrath of travelers who aren't "offended" by breastfeeding. 24/07/2019
Now playing Next USA Apple's Intel play and Leo DiCaprio's enduring prestige Byers Market is a daily newsletter from NBC News senior media reporter Dylan Byers that takes you behind the scenes in Hollywood, Silicon Valley, New York and Washington. 23/07/2019
Now playing Next USA Facts about Saturn's rings, moons and more The sixth planet from the sun has spectacular rings and dozens of moons, including one that scientists find especially intriguing. 22/07/2019
Now playing Next USA César Pelli dies aged 92 César Pelli, known as the architect who designed some of the world's best-known buildings, has died aged 92. 20/07/2019
Now playing Next World News US Senator Schumer asks FBI, FTC to probe Russia's FaceApp over security concerns US Senator Schumer asks FBI, FTC to probe Russia's FaceApp over security concerns 18/07/2019
Now playing Next USA Elon Musk wants to hook your brain up directly to computers The Tesla and SpaceX founder announced a goal of implanting chips into human brains as early as next year to create direct human connections to computers. 17/07/2019
Now playing Next USA China's rising tech scene threatens U.S. brain drain as 'sea turtles' return home Silicon Valley was "a little bit slow for us," said Shenzhen-based entrepreneur Jason Gui, one of millions of Chinese people who were educated in the U.S. 14/07/2019
Now playing Next USA At least 1 American among the 27 dead in hotel terrorist attack in Somalia The U.S. State Department is working to confirm if any other Americans were among the dead or injured in the attack that lasted more than 14 hours. 13/07/2019
Now playing Next USA 'No shower, no shower!': Migrants shout at U.S. border camp The vice president saw detainees packed into their holding areas surrounded by chain-link fence. 13/07/2019
Now playing Next USA Democrats claim victory as Trump retreats on census citizenship question The reaction came quickly after President Donald Trump announced that he was backing down on his demands to include a citizenship question on the 2020 census. 12/07/2019
Now playing Next Spain Franco's 'stolen baby' reunited with biological family International DNA databases are re-igniting hope for Franco's "stolen babies" to find their biological families after a woman was able to find siblings. 11/07/2019