TSA finds throwing daggers concealed in book

The Transportation Security Administration on Monday found a book concealing two throwing daggers in the carry-on bag of a passenger traveling from Washington's Ronald Reagan National Airport to Chicago. The daggers -- and the book -- were surrendered to the TSA at a checkpoint.

According to one report, the TSA described the 6-inch throwing knives as "artfully concealed" in a hardcover book. The book's pages were glued together and hollowed out, a method of hiding keepsakes sometimes known as a book safe. The hollowed-out book was also a way of concealing contraband; during Prohibition, a hollowed-out book could conceal a flask or pint of illicit liquor.

In this case, the hollowed-out book that concealed the throwing knives appears to have been thematically linked. In the photo above, the book is open to the chapter "Ninja Equipment."

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Photo: A hollowed-out book containing two throwing daggers. Credit: Transportation Security Administration / Associated Press