China has secretly fired powerful laser weapons designed to disable American spy satellites by “blinding” their sensitive surveillance devices, it was reported yesterday.

The hitherto unreported attacks have been kept secret by the Bush administration for fear that it would damage attempts to co-opt China in diplomatic offensives against North Korea and Iran.

Sources told the military affairs publication Defense News that there had been a fierce internal battle within Washington over whether to make the attacks public. In the end, the Pentagon’s annual assessment of the growing Chinese military build-up barely mentioned the threat.

“After a contentious debate, the White House directed the Pentagon to limit its concern to one line,” Defense News said.

The document said that China could blind American satellites with a ground-based laser firing a beam of light to prevent spy photography as they pass over China.
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China has fired high-power lasers at U.S. spy satellites flying over its territory in what experts see as a test of Chinese ability to blind the spacecraft, according to sources.
It remains unclear how many times the ground-based laser was tested against U.S. spacecraft or whether it was successful.
But the combination of China’s efforts and advances in Russian satellite jamming capabilities illustrate vulnerabilities to the U.S. space network are at the core of U.S. Air Force plans to develop new space architectures and highly classified systems, according to sources.
According to experts, lasers — depending on their power level — could blind electro-optical satellites like the giant Keyhole spacecraft or even interfere with radar satellites like the Lacrosse. Blinding, one source said, is different than disabling given the enormous power required to shoot a laser through the dense lower atmosphere and reach a fast-moving satellite in space. The hardware on the spacecraft can’t be changed given they’re in orbit, but software changes can help them weather disruptive attacks.
Russian jamming systems are publicly known — the Air Force destroyed such a system deployed to Iraq to keep American GPS guided bombs from finding their targets during the 2003. The site was destroyed by GPS guided bombs.
Pentagon officials, however, have kept quiet regarding China’s efforts as part of a Bush administration policy to keep from angering Beijing, which is a leading U.S. trading partner and seen as key to dealing with onerous states like North Korea and Iran.
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