smart neighborhoods running on a microgrid. a stadium powered with solar. a hospital that doesn't lose power. amazing. i like it. never gonna happen. ♪ >> reporter: august 7, 1998, truck bombs explode outside u.s. embassies in kenya and tanzania, killing 224 people, including 12 americans. this is the opening salvo of al qaeda's campaign of global terror. in afghanistan, al qaeda operative aimen dean learns of