This is promising

The massive movement of intelligence gathering and analyzing forces from Iraq to Afghanistan in the last two years is paying off by cutting Taliban supplies of weapons, and money. More and more captured (often from dead Taliban) weapons and ammunition is of poor quality. Explosives, even the stuff made from ammonium nitrate fertilizer, is harder to get, and often used in smaller quantities in order to make more roadside bombs. That, in turn, is just getting more Taliban killed, including many more leaders. ...These are increasingly more dangerous because the Americans have more UAVs, along with camera towers and aerostats (tethered blimps) that can see for long distances, day or night and in any weather. It's not just that the cameras can pick up some guys planting a bomb (and call in an air strike), but can detect suspicious movement of any kind. The terrorists are creatures of habit, and the intelligence software can detect habits.