http://www.guardian.co.uk/technology/2008/nov/20/china-us-military-hacking

China is aggressively developing its power to wage cyber warfare and is now in
a position to delay or disrupt the deployment of America's military forces
around the world, potentially giving it the upper hand in any conflict, a
panel of the US Congress has warned.

The panel's report discloses an alarming increase in incidents of Chinese
computer attacks on the US government, defence companies and businesses. It
notes that China now has both the intent and capability to launch cyber
attacks "anywhere in the world at any time"

"China is stealing vast amounts of sensitive information from US computer
networks, said Larry Wortzel, the commission's chairman.