And as if on cue...

Here's Thomas Friedman in today's NY Times (pay-for-view only!)

As for General Petraeus, I have no idea whether his military strategy is right, but at least he has one -- and he has stated that by ''late summer'' we should know if it's working. As General Petraeus told the BBC last week, ''I have an obligation to the young men and women in uniform out here, that if I think it's not going to happen, to tell them that it's not going to happen, and there needs to be a change.''

Let's see, April, May, June, July, August - that's 5/6 of a Friedman unit, and then we'll know for sure!