[Austin Willard Wright]

Clark is scum (and I agree with your comments on Kosovo) but even a painted clock is right twice in one day.

[Kate22]

"...even a painted clock is right twice in one day."

But you wouldn't rely on it to cook an egg, let alone to run a 'precision bombing campaign'.

Good phrase though. Here's another for you: The only smart bomb is one which refuses to be launched.