An Army Reserves lieutenant colonel testified that there were no signs reservist Robert Card might commit a mass shooting.
The former prisoner of war had his conviction thrown out by a federal judge last week.
"You’re probably not enabling mission command if you’re sitting right next to your boss," said Sergeant Major of the Army Michael A. Grinston.
Maj. Gen. Joseph Ryan said a network of treaty alliances and partnerships provides a regional safeguard.
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