Matt:
the premise of the appeasement frame is that we're dealing with hard-core irrational ideologues who'll stop at nothing to destroy us. Adolf Hitler actually was such a man and, not coincidentally, he wasn't particularly interested in acquiring the international prestige and legitimacy associated with a sit-down with English politicians -- he wanted a giant war. In general, the right wants us to believe that world history is littered with countries whose rulers, like Hitler, will stop at nothing short of world-domination but who also spend their evenings fondly dreaming of the chance at a White House photo op. But that's absurd. One shouldn't, of course, strike a bad bargain with a foreign country just because you held a meeting, but to fear that the very act of holding a meeting is a blow to the national interest is silly. Genuine madmen aren't going to care what “signal” we're sending, and non-crazy people can be productively bargained with.