Not an expert, but I have fairly low confidence that the USN has countermeasures to these extremely sophisticated ASMs. These are absolutely awesome weapons.
When you are traveling that fast, it is hard to hit a target. Anything you hit at that speed (like shrapnel from an AA missile) is going to mess you up.
I believe the US countermeasures are scalar weapons.
Supersonic missiles ain't squat when they have to fly through a demolecularization field. They just turn into high speed dust.