Perhaps he was trained at the truck driving school in Missouri that the Feds investigated recently.
http://www.newstribune.com/articles/2006/02/16/news_state/0216060031.txt
That link is dead. What was it?
looks like the New-Tribune article has expired; here are links to some
previous mentions of the Middle Eastern-Missouri trucking connection:
http://www.freerepublic.com/focus/f-news/1573558/posts
http://www.freerepublic.com/focus/f-news/1578638/posts