The Missile Defense Agency said the ground-based interceptor automatically shutdown "due to an unknown anomaly" shortly before it was to be launched from Kwajalein Atoll in the central Pacific Ocean [...]
The missile defence shield was meant to be in operation by the end of 2004.
In earlier tests, missile interceptors had a record of five-for-eight in hitting target missiles.
Wednesday's test had been put of several times because of bad weather, and a malfunction of a recovery vessel not directly related to the equipment being tested, The Associated Press reported.
So here's the deal -- the missile defense system works sometimes, so long as the target has a big radar signal the interceptor can track, and as long as we have perfect weather in Alaska.