Mohammad al-Corey Feldman, according to Saturday Night Live's "Weekend Update"; a "clean skin" according to AG Eric Holder.
The bomb-training unit that supposedly prepped Faisal Shahzad was previously targeted by CIA drones, so there's that sense of payback.
The counterfactual to consider: What happens if a max death count ensues? Say, maybe a couple hundred bodies?
Well, first off, Obama is mercilessly targeted by the GOP in the usual, turnabout-is-fair-play mode.
Second, the Obama administration is required to make a big show of bombing the hell out of the direct links back in Pakistan.
Third, the US puts on a big show of calling Pakistan on the carpet.
Fourth, the US announces some sort of strategic review of our approach to NW Pakistan.
Fifth, we move according to the decisions of that review, and Pakistan counters with its own charges, moves, and diplomacy--likely to involve the Chinese?
Put the death total at a lot higher (better, bigger bomb and it works) and you just turbocharge that whole process.
But when the event fails, everybody breathes a sigh of relief--especially the Chinese!
And yet, if we move into the many-and-small-attacks world, every once in a while they will be successful, and so we'll need to get used to that, and develop some sense of proportional response that doesn't unduly freak out ourselves, the host nation, or its allies.