Via Matt Apuzzo at the New York Times, it turns out the feds, who arrested Temple University’s head of its physics department, Dr. Xi Xiaoxing, for spying by sending schematics to China of a secret device, a “pocket heater,” blew it. The very serious looking schematic turned out to be the plans for, well, something else.
It was an embarrassing acknowledgment that prosecutors and F.B.I. agents did not understand — and did not do enough to learn — the science at the heart of the case before bringing charges that jeopardized Dr. Xi’s career and left the impression that he was spying for China.
He was arrested, led away in cuffs, reputation stained and life upended. Because he was a spy the agents had no clue what all the squiggly lines meant, but it sure looked spy-ish.
“I don’t expect them to understand everything I do,” Dr. Xi, 57, said in a telephone interview. “But the fact that they don’t consult with experts and then charge me? Put my family through all this? Damage my reputation? They shouldn’t do this. This is not a joke. This is not a game.”

