Commercial photos show Chinese nuke buildup

Commercial satellite photos made public recently provide a new look at China's nuclear forces and bases images that include the first view of a secret underwater submarine tunnel.

A Pentagon official said the photograph of the tunnel entrance reveals for the first time a key element of China's hidden military buildup. Similar but more detailed intelligence photos of the entrance are highly classified within the U.S. government, the official said.

"The Chinese have a whole network of secret facilities that the U.S. government understands but cannot make public," said the official, who spoke on the condition of anonymity. "This is the first public revelation of China's secret buildup."

The photographs, taken from 2000 to 2004, show China's Xia-class ballistic missile submarine docked at the Jianggezhuang base, located on the Yellow Sea in Shandong province.

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