Somalis are mercenary and would have sold his ass on the drop of a hat.
infact his presence would spark an intense war as different clan millitias fight over him so get the reward money.
im sure if the US was serious they could have got their hands on the dozen or so alqaeda members hiding out in somalia in the eary 2000's.
The isrealis know how to play the game, according to family member who
worked for one the warlords in moqadishu, he witnessed the arrival of some shady looking white men arab looking but not dressed as islamists.
it was ll hush hush, and they had a closed door session over a couple of days
feasted, chewed qad and had lively discussions.
money was exchanged and 10 days later 2 of the alqaeda members that where responsible for the attack on the isreali hotel in mombasa, and attaempted attack on an el al plane dissapeared after a fire fight.
he assumes the men where mossad, and that they forked over money in advance, and it took only 10 days to find the hideout of the men and hand them over to the isrealis.
The US had the chance to do the same with OBL in sudan, the sudan offered him on a serving tray, when the US didnt respond they allowed him to leave and go to afghanistan.
another interesting thing is that OBL discretly visited moqadishu in 1996 and left immedietly, i guess he didnt like what he found.