A reader responds with my kind of constructive criticism:

Jonah,
While I think you are right, I also think that you overestimate the originality of your position. It seems to me that you have simply defined or more clearly explained the essence of a flip-flop. In other words, I think you and Krauthammer may be saying the same thing in different words. John Kerry takes the position he deems most politically prudent, as Krauthammer says. He then explains his position as if it were how he has felt all along in order to create the appearance of consistency (which he obviously fails to do), as you say. I think one is an extension of the other. I think John Kerry feels it necessary to support whatever position he happens to take as though it has been his position all along. He’s a flip-flopper and, evidently, proud of it.
Regardless, you kick ass. Anyone that can turn my once apolitical (left leaning because of college) girlfriend into a staunch conservative has truly provided a great service and I owe you my thanks.
All the best,
[Name withheld]