One of his friends has been quoted as saying that the Iraqi police thought Berg was an Israeli spy. To add insult to injury, Berg was also carrying some literature written in Farsi including a book about Iran.
You're trying to meet Al Queda, and contact A says "give this book to contact B, tell them Achmed the blind sent you." Then you pay him some $$$, or whatever is expected. Maybe there is no contact B, and you just got rooked out of your money.
Maybe there is a contact B, and you get passed along the chain, until you find yourself in an orange jump suit.