But seriously, recall the stories about one of the hijackers visiting a bar and [link|http://www.abc.net.au/4corners/atta/maps/timeline.htm|drinking alcohol] a few nights before 9/11. Considering Islam's prohibition of alcohol, I don't know if things like pigs blood will be much of a deterrent.
Would be nice if it was that simple though. :-(
Cheers,
Scott.