In a classified briefing, U.S. lawmakers met for more than two hours with government officials on those mysterious drone sightings. Top U.S. government officials insist there's no imminent threat to public safety from mysterious sightings of drone-like objects over New Jersey and several other states. Two house Democrats who attended a top-secret briefing say they were told none of the sightings were related to federal government operations, and they said there's "zero evidence" any laws were broken.