I fully understand the problems of becomeing like them through acting as ruthless as they are. But I was taught in the military that not creating deterence invites more death of your people, and a much higher expense in security costs, or ransoms paid out.
Three terrorists from Gitmo dropped from the approximate height of the World Trade Center from a helicopter to return them to that part of the world is something that would send a message they would get.
Sad, but true.
BAD IMAGE ALERT. Bodies dropped from that height don't bounce. They splatter-Like bugs on a windshield. We'd need a lot of plastic bags.