Tiger attack at SF Zoo

A Siberian tiger penned behind a moat over 6m across and a wall over 5m high nonetheless got out on Christmas Day, killing one man and injuring two more before it was shot dead. There's no word yet on whether human error was involved, but it certainly seems likely. One unofficial tally (there is no official one) is that there were 44 big cat attacks in the US in 2007, although this includes pets, carnival sideshow animals, etc.