Success As A Tourist Spot Endangers Caves

Digitization, internet traffic used to ease number of visitors

The popularity of the Mogao Caves, which house the world's largest collection of Buddhist art, is proving their biggest threat.

The caves, in northwest China's Gansu province, already have received many more visitors this summer than they can handle, and this is altering their environment. But new technology may help save the caves from their own success.