To folks like karenbynight: "support our troops" isn't meaningless, exactly. It's like supporting an alcoholic. Support the person, but don't support their symptoms.
Except, of course, that supporting the symptoms is the legally mandated part. I suppose we could think of ourselves, collectively, as a store clerk just doing our job by redeeming Beer Stamps for an alcoholic on welfare.
Never mind. Forget the "support our troops" bit.