Exploding Fuel Tankers Driving U.S. Army to Solar Power: Energy

Exploding Fuel Tankers Driving U.S. Army to Solar Power: Energy

Arshad Butt/AP Photo

Gunmen in southwestern Pakistan torched a dozen tankers carrying fuel to NATO troops and killed a driver, police said, the latest strike against supply convoys heading for Afghanistan since Pakistan shut a key border crossing in this 2010 file photo.