Playboy magazine is not the most obvious choice for those preoccupied with nuclear proliferation. Yet, Joshua Pollock’s article on “The Secret Treachery of A.Q. Khan” in the January/February 2012 issue has proved to be as titillating as the all-revealing photos that made the publication infamous. The article, written in the whodunit oeuvre, uncovers that in addition to the three known customers of the Khan network—Iran, North Korea and Libya— there was a fourth hitherto unknown customer and reveals the “last country on the list: India, Pakistan’s foe.”