Al Qaeda is getting more sophisticated each day, planning terror attacks with encrypted Internet message boards and special software to disguise their activities on chat rooms.
U.S. officials say that's where they found the recent plot that closed down 19 U.S. diplomatic posts across the Muslim world.
Still, it's unlikely that top al Qaeda leaders like Ayman al-Zawahri have gone digital, or even use phones.
Al Qaeda leaders are still using low tech methods to get their messages to tech-savvy foot soldiers.
That means all the National Security Agency 's digital surveillance isn't likely to track them down.