New intelligence about weapons research by American adversaries opens the possibility of a foreign actor behind the mysterious incidents that have injured hundreds of U.S. personnel serving overseas.

A report from the intelligence community released Friday maintains its conclusion that a foreign adversary is not behind the mysterious ailments plaguing government workers, but it opened the door

In a fresh assessment issued by US intelligence on Friday, five of the seven agencies decided that it is highly improbable that a foreign opponent was responsible for the injuries. Two of the agencies,