The government is moving to address concerns about security clearances and insider threats, likely generating new procedures for government contractors. The issues have long been discussed; in 2009, Army Maj. Nidal Malik Hasan is alleged to have shot dozens of people at Ft. Hood, Texas, while in 2010, Army Specialist Bradley Manning was arrested for leaking classified documents. But they took center stage last year when contractors Edward Snowden released secret government information and Aaron Alexis fatally shot a dozen...
