Mr. Lewis was more sanguine than many others on the issue of threats from non-state actors, such as terrorist groups, crime networks and hackers.
Mr. Clapper singled out the computer-hacking alliance Anonymous and its splinter group LulzSec as growing threats because of their “easy access to potentially disruptive and even lethal technology and know-how.”
But Mr. Lewis said such groups “do not have the capability to launch a truly damaging attack” and are unlikely to develop it in the near future.
“This isn’t going to happen next week,” he said. “It’ll take years.”
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