All they did was put up a photo of Hillary Clinton.
Her ugly mug stops clocks, why not light?
How'd they know where the photon was? Did it glow? (maybe a stupid question). Also, how could they tell the "stopped" light photon was really there, rather than its energy having been absorbed by the atoms? Is it that it continued in the same direction once restarted?
Gaaack! Cold fusion! ;-)