Are there good reasons to be anti-free trade?

There are numerous reports coming out of Thailand and Burma that there’s slavery going on (particularly in the fishing industry). Here’s one example:

I’ve got more if you want it.

Just to head this off, though, since everyone keeps lying in this thread:

I haven’t made any claims about how widespread this is. What I’ve said is that I’m concerned about this, and if someone is advocating free trade, they need to tell me how to address this concern. And I’ve said the data I’m seeing (because I’m seeing a lot of reports out of Burma and Thailand) contradict the one economic model proposed in this thread for reducing this problem. And I’ve said that if someone wants to convince me that the proposed economic model will actually reduce slavery, I’m willing to listen, but they have to do some data crunching.

But, given how this thread has been going, there will probably be a few people along shortly to lie about my position.