The passenger, then 18, alleged the bomb threat was a joke.
The change arrives around a month after the Air Force missed its recruiting target for the first time since 1999.
Archived radio traffic indicates an air traffic controller in Austin was not clear about what the military jet’s pilot intended to do.
The buildup reflects U.S. concern that the deadly fighting between Hamas and Israel could escalate into a more dangerous regional conflict.
By Tara Copp, AP
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