UPDATE: They've arrested 4 and detained as many as 30 Egyptians from the Baltimore area in connection with this investigation. They are operating out of middle eastern businesses.
http://www.cbsnews.com/stories/2005/10/18/national/main951759.shtml?CMP=OTC-RSSFeed&source=RSS&attr=U.S._951759
Interesting - there's supposed to be an Egyptian cleric dropping in to give a lecture at an Islamic center down south of Tampa this week. Picked a bad time to drop into the country.