Defense Environment Alert -- The Defense Department earlier this month formally certified its plan to stretch out the cost and schedule for destruction of stockpiled chemical weapons at sites in Kentucky and Colorado, despite conceding that total costs will be higher with this approach and that storage facilities are targets for terrorist attack. Under the certified cost and schedule sent by DOD's acquisition chief to Congress on Jan. 10, the department's Assembled Chemical Weapons Alternatives (ACWA) program will complete destruction...