The Pentagon will attempt a more difficult intercept test of its national missile defense system March 15, the official in charge of the Defense Department's missile defense programs told House lawmakers today. The test will be riskier because several balloon decoys will be added to the target missile, according to Lt. Gen. Ronald Kadish, the director of the Missile Defense Agency. The test will be one of 39 MDA has scheduled through the end of fiscal year 2002 involving both...