A new study headed by the chairs of the 9/11 Commission has given the federal government a "D" for its efforts in preventing the spread of weapons and protecting the homeland. The same report awarded a B minus, its highest mark, for government efforts to combat chemical weapons. Prof. Joseph King explains the discrepancy. "I credit that panel -- it's a bipartisan commission -- and they have come up with any number of recommendations, most of which the government hasn't adopted yet."