U.S.: China could take down the power grid

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China and "probably one or two other" countries have the capacity to shut down the nation's power grid and other critical infrastructure through a cyber attack, the head of the National Security Agency told a Congressional panel Thursday.http://feeds.feedburner.com/~ff/rss/cnn_us?d=yIl2AUoC8zA</img> (http://rss.cnn.com/~ff/rss/cnn_us?a=Dh5LaKqF75A:8FU5vzVZeEE:yIl2AUoC8zA) http://feeds.feedburner.com/~ff/rss/cnn_us?d=7Q72WNTAKBA</img> (http://rss.cnn.com/~ff/rss/cnn_us?a=Dh5LaKqF75A:8FU5vzVZeEE:7Q72WNTAKBA) http://feeds.feedburner.com/~ff/rss/cnn_us?i=Dh5LaKqF75A:8FU5vzVZeEE:V_sGLiPBpWU</img> (http://rss.cnn.com/~ff/rss/cnn_us?a=Dh5LaKqF75A:8FU5vzVZeEE:V_sGLiPBpWU) http://feeds.feedburner.com/~ff/rss/cnn_us?d=qj6IDK7rITs</img> (http://rss.cnn.com/~ff/rss/cnn_us?a=Dh5LaKqF75A:8FU5vzVZeEE:qj6IDK7rITs) http://feeds.feedburner.com/~ff/rss/cnn_us?i=Dh5LaKqF75A:8FU5vzVZeEE:gIN9vFwOqvQ</img> (http://rss.cnn.com/~ff/rss/cnn_us?a=Dh5LaKqF75A:8FU5vzVZeEE:gIN9vFwOqvQ)
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