The price tag for developing the Pentagon's National Missile Defense system has grown by more than $3 billion, according to the latest cost estimates released by the Defense Department today. The total development cost has increased from $8.8 billion to $12 billion, and the total cost for developing and building the system is now estimated to be $20 billion. Lt. Gen. Ronald Kadish, director of the Ballistic Missile Defense Organization, told a Senate subcommittee yesterday that the estimated 20-year life-cycle...