Also spreads fear ... mark the calendar as the end of February year 2007 and hope this terrorism tactic doesn't spread to our home countries. Like the bird flu has gone from China to England. I know the two are different, but they both just keep spreading.
To do this, someone had to sit in a den or living room and think it up and then talk it up and then put the ingreidants together, drive to the designated area and let it happen. Then read about it or watch it on T.V. and have a wicked inner smile.