Force Protection Condition Change

Barksdale has no anti-aircraft defenses.

No one has antiaircraft defenses in the US.

DC is protected by anti air defense as is the Florida White House and other sensitive locations 

Actually the USAF does also in limited amounts but they are scrambling to get more anti drone weapons 

they are purchasing 5.56 anti drone ammunition from Ukraine as well as 308 & 50 cal anti drone ammunition

I thought the anti-drone rounds were an April fools thing but I looked it up. Interesting concept, a bullet designed to fall apart at 15-50 meters, creating a small pattern of fragments. 
https://www.armyrecognition.com/news/arm...fpv-drones