The Federal Aviation Administration said on Thursday it may ban the Pentagon from transporting government officials on routine missions around Reagan Washington National Airport, after a series of incidents involving passenger jets.

The Jan. 29 collision over the Potomac River in Washington, DC — which preliminary reports have blamed on the military Black Hawk flying too high — was the deadliest US air disaster since 2001, and caused officials to change the flight path of helicopters near the airport.

A "go-around" maneuver is performed when a pilot must abort or reject landing on the final approach or once the aircraft has already touched down.

The Pentagon has ordered all military leaders and commands to pull and review all of their library books that address diversity, anti-racism or gender issues by May 21, according

The Defense Department has spent more than $21 million on flights to Guantanamo Bay, according to figures shared in a letter sent to Congress and obtained by CBS News.