Cyber spying a threat, and everyone is in on it

(AP) -- Ghost hackers infiltrating the computers of Tibetan exiles and the U.S. electric grid have pulled the curtain back on 21st-century espionage as nefarious as anything from the Cold War - and far more difficult to stop.

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<p><a href="http://www.physorg.com/news158562451.html">Cyber spying a threat, and everyone is in on it</a></p> <p>(AP) -- Ghost hackers infiltrating the computers of Tibetan exiles and the U.S. electric grid have pulled the curtain back on 21st-century espionage as nefarious as anything from the Cold War - and far more difficult to stop.</p>