Sarcasm wasted

U.S. Senator John McCain has issued the following in response to a statement by Sen. Barack Obama:

"While Senator Obama's two years in the U.S. Senate certainly entitle him to vote against funding our troops, my service and experience combined with conversations with military leaders on the ground in Iraq lead me to believe that we must give this new strategy a chance to succeed because the consequences of failure would be catastrophic to our nation's security.

"By the way, Senator Obama, it's a 'flak' jacket, not a 'flack' jacket."

But wait.

Let me just point out that (A) McCain’s use of the jacket in question pretty much amounts to “flack,” and (B) my Oxford American Dictionary gives “flack” as the alternate spelling.

Your move, McCain.