As the National Transportation Safety Board investigates the fatal midair collision that left 67 dead, details are emerging about mistakes and failures leading up to the crash.

Keith Segel, an American-Israeli in Gaza and the first of American citizens taken on Oct. 7, will be released on Saturday as part of the Israel-Hamas ceasfire deal.

Defense Secretary Pete Hegseth calls the deadly aircraft collision involving a Black Hawk and a civilian airliner "a tragedy" in a statement obtained exclusively by Fox News.