A reward for both--in bin Laden's case, the reward goes back to his indictment in the bombings of our embassies in Kenya and Tanzania. I'd have to check to see if Omar was indicted--but there's a price on his head, too. I think bin Laden's price is in the range of $25-$30 million; Omar is in the $10 million range.
I did like the image of terrorists running like rats leaving a sinking ship from Somalia--headed towards Yemen.