Well the missile defense system is now batting over 50% with today's test (when looking at all tests of the system). One significant difference today was it was the first time they used an operational missile out of one of the alert silos and not a test missile sitting on a pad out in the Pacific. Nice to see it work although I'll bet it's still probably only 50% effective at best. I just don't know how "real" the test was to say for sure. At least we have some capability for the billions spent.