lucy24 - 4:46 pm on Nov 13, 2012 (gmt 0)

Contact them and let them know of their mistake

"Oh, oops, I didn't realize that www.example.com wasn't associated with the DoD. My bad."

There is a short list of ways to deal with hotlinking images. I hope it doesn't become necessary to evolve a list of similar solutions for js hotlinkers.

That's setting aside the whole question of why on earth do they bother? Is the DoD so pressed for bandwidth and server space that they can't simply swipe your script and host it on their own equipment? It's hardly likely that anyone would ever notice.