Pompeii relics under threat

This house in the ancient Roman city of Pompeii, once used by gladiators in training, has collapsed. Photo / AP
This house in the ancient Roman city of Pompeii, once used by gladiators in training, has collapsed. Photo / AP Shrink
This house in the ancient Roman city of Pompeii, once used by gladiators in training, has collapsed. Photo / AP
A 2,000-year-old house in the Roman city of Pompeii has collapsed into rubble.And experts have warned