Plaw,
Lots of old and used clothes have been sent to the disaster affected areas for the people whose homes have been totally destroyed. It would be tough for you to imagine what kind of poverty these fishermen live in. Their homes were nothing but make-shift huts and they probably had nothing more than a few cooking utensils and a boat. This person could have been a Osama supporter, I cannot prove/disprove that. But it could be just that this guy got a shirt from the relief material, when he had nothing to wear. And in such a situation, I wonder if he would be sensitive enough to think of the sentiments behind that image.