It passed a test for the first time

Well, we shot down a ballistic missile that was coming from Alaska. The Pentagon is all atwitter about it and maybe they should be. But how good a test was it? In an August post questions were raised as to the utility of these tests, as the missile's target and track are known. And we have yet to test for cruise missiles, which are more likely to be used.

Was it a good return for the $100,000,000 spent on the test?This will surely escalate the return of the arms race with Russia.