A second German within a matter of days has reportedly been suspected of spying for the Americans. The first one was also prepared to sell secrets to the Russians, according to media reports. Spying on allies falls under the category of "trust but verify." Robert Harris treated the issue brilliantly in "The Ghost" (also known in the film version as "The Ghost Writer"), which deals with whether a Tony Blair-like British politician was a CIA mole. Everyone spies on everyone, some intelligence experts say, and Germany is merely making a point this time because of the public outcry over the revelations of NSA wiretapping. What about all the Czech government workers who reveal state secrets to their American, Russian or Chinese friends over a three-martini lunch? Is it espionage? Absolutely, but the big difference is that the German nailed last week was seeking cash payments and wasn't just chatting with a colleague.