The other report was an SUV intentionally crashed into a pump and caused explosion. I think this is another one. If so then I would say they have begun.
Any more info on the truck stop explosion. There's a thread:
http://www.freerepublic.com/focus/f-news/1146446/posts
The one in Chicago is odd, being that the area has manu muslims (Uptown) and 3/4 of the cab drivers are Arabs