U.S. Defense Secretary Jim Mattis, right, and Israeli Defense Minister Avigdor Lieberman attend a joint press conference at the Defense Ministry in Tel Aviv, Israel, April 21, 2017. (Jonathan Ernst/AP)

Intelligence Veterans Pen Open Letter Casting Doubts On Syrian Conflict

Two dozen former U.S. intelligence professionals are urging the American people to demand clear evidence that the Syrian government was behind the April 4 chemical incident before President Trump dives deeper into another war.