Exactly 70 years ago today, Japanese planes launched a surprise attack on Pearl Harbor, killing over 2,000 Americans and launching the United States into World War II.

Sen. John McCain (R-Ariz.) took to Twitter to honor the anniversary in an odd way.

For those who can’t see the image, McCain wrote, “On this 70th anniversary of the attack on Pearl Harbor, we should never forget the price we paid for not being prepared. #Pearl70”

I’m not sure what McCain is trying to say with a message like this. Does he think the United States somehow deserves part of the blame for the Pearl Harbor attack? In McCain’s mind, how, exactly, were we to “prepare” for this sneak attack?

And how swift would the “blame America first” condemnations be if a Democratic senator raised this on the same day as survivors and their families gather in Hawaii to commemorate the event?

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Follow Steve on Twitter @stevebenen. Steve Benen is a producer at MSNBC's The Rachel Maddow Show. He was the principal contributor to the Washington Monthly's Political Animal blog from August 2008 until January 2012.