Generations of men have enjoyed the variety of Playboy's "Girls of..." series. Girls of this or that college, profession, or region. When I was a teenager I liked "Girls of Scandinavia." At The Spot the other night, on my way from the cat food to the cash register, I thought I saw a new one: "Girls of al Qaeda." When I caught my breath I realized my media-addled brain had just combined two headlines.