US Department of Defense

United States Missile Defense Agency / http://www.mda.mil/

A physicist with the Union of Concerned Scientists is calling the Ground Based Midcourse Missile Defense System less than proven, despite Sunday’s successful test over the Pacific Ocean.

The Ground Based Midcourse Missile Defense System test employed a second generation kill vehicle that had missed its target in two previous tests in 2010. Dr. Laura Grego, who covers defense issues for the Union of Concerned Scientists, says Sunday’s intercept of a dummy enemy missile should be looked at in context.