A crummy day for missile defense: In the latest test — the first in nearly two years — the interceptor didn’t even get off the ground. In the immediate aftermath, they’re blaming the problem on an “unknown anomaly.” It’s bad enough when these ABMs miss their targets, but failing to go airborne is just plain embarrassing like showing up to the shooting range without your ammo. Speaking of ammo, now the enemies of missile defense have more of it.