Chinese firefighters help free a child who got stuck in a claw machine. Claw machines are tricky, as anyone who's tried to grab a cuddly toy at one will know. For some children, the obvious thing is ...

Late last year, on a trip to China, Jack Zheng caught an unexpected case of claw machine fever. "Every two or three blocks, they were just full of them," Zheng said. "Every single arcade was packed ...