That's because the goal was actually to kill brown people.

If they did that they would have a lot more paperwork to forge. The U.S. was claiming that they were running cocaine, but there were reports after one of the bombings that a lot of weed washed up on shore. With a large part of the U.S. population believing weed shouldn't be illegal, and clearly making it legal would take away any reason for someone to smuggle weed into our country selling the idea of attacking their country for it would have been harder. So they would have had to dispose of all the weed, bag up fake cocaine or acquire real cocaine and submit it all to evidence and fake all the paperwork.

Instead they just bomb them and don't have to lie anymore, the evidence was supposed to gone and they could tell the media whatver story they wanted.