ISIS Warns U.S. Muslims of New Attacks: Stay Out of Public Places
'We will explode, run over people by vehicles and cut off their necks'
U.S. Navy Launches First-Ever Submarine Drone Squadron
Service expects team to be fully operational by 2020
U.S. Yanks Staff in Cuba After Attacks on American Diplomats
Move reverses major part of Obama's diplomatic detente with Havana