Army Sgt. Brian Lieberman intervened during an active shooter environment, shielding an injured civilian from gunfire.
Unions representing DOD educators are challenging President Trump's executive order excluding federal workers from collective bargaining.
There has been a 200% increase in SOF missions over the past three years, the defense secretary said.
The pause comes after 67 people died in January when a passenger jet collided in midair with a Black Hawk helicopter at Reagan airport.
By Tara Copp, AP
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