President Biden delivered the blunt warning after Russia accused the U.S. and Ukraine of preparing to use chemical and biological weapons, a claim the U.S. is blasting as “lies.”» Subscribe to NBC News: http://nbcnews.to/SubscribeToNBC » Watch more NBC video: http://bit.ly/MoreNBCNews NBC News Digital is a collection of innovative and powerful news brands that deliver compelling, diverse and engaging news stories. …

Addiction to tech is a topic that resonates with almost everyone. Screens and devices are ubiquitous. Our smartphones are often the last thing we look at before we go to bed and the first when we wake up. What toll has this taken on our work lives, our families and society overall? What about our children? Well, dozens of states …

New video shows a large police response to a reported shooting at UNLV. The university said shots were reported at Beam Hall as well as the school’s student union. There appear to be “multiple victims,” police said, adding that the suspect is dead. Watch ABC News Live 24/7 on YouTube: https://youtube.com/live/OOtxXPaQvoM SUBSCRIBE to ABC News on YouTube: https://bit.ly/2vZb6yP Latest updates: …