Airport knife scare

The AP reports that a man was arrested for having a knife hidden inside a book in a secure area of the Detroit Metropolitan Airport on Thursday. The Ft. Worth Star Telegram has the scant details of the incident.

A 21 year old "legal permanent resident of the United States" from Yemen, with a one-way airline ticket back to his home country, carrying a knife concealed inside a book....hmmm. Nothing suspicious about that. Besides, he said he didn't know how the knife got there.

No details given about the type of knife or the title of the book. How to Get Your Own 72 Virgins, perhaps?