So let's sum this up. According to Mr. Carter, diplomacy consisted of having American diplomats kidnapped and then dispatching a clandestine operation, which entailed invading a sovereign country, to rescue said kidnapped diplomats.

He is worried that the current administration isn't using enough diplomacy with Iran. As I understand it, we currently have Americans being held against their will in Iran. All that's left, I suppose, is for President Bush to invade Iran to complete the circle of Carter-like diplomacy.