The US intelligence community has been studying radical Moslem groups in Waziristan intensely for seven years. Our knowledge constantly improves.

Some particular places are under special observation. Information about them is being collected constantly by satellites. Every vehicle going in and out is watched. Every phone call and e-mail going in and out is captured and studied. Every electro-magnetic impulse is recorded. People associated with those places are being questioned and recruited.

The longer we do this, the more we improve. Sometimes we get some really big breaks and more insight, more penetration into their communications and planning. Success builds upon success.