on a bus in jerusalem. a family from new york now hospitalized heartbreak on top of heartbreak. a driver plows into a fundraiser for a family that in a fire ten days ago and salman rushdie now awake and speaking what the author s family is saying about his recovery this is nbc announcer: this is nbc nightly news with kate snow good evening. i m hallie jackson in for kate as we come on the air tonight, a new warning serving as a vivid illustration of a divided nation on edge with the fbi in a new bulletin describing a spike in threats against law enforcement. ever since that search of former president trump s mar-a-lago home on monday now we re seeing stepped-up security for officials around the country and a growing sense of unease about what could happen next if this violent talk keeps escalating our senior white house correspondent kelly o donnell starts us off tonight. reporter: tonight, an alarming new warning sent to law enforcement about their own safety vo