Jihad spam

Psyops folks fly planes over Afghanistan and Iraq, dropping leaflets to try to influence the folks below. There is a long history of this: scary leaflets for your enemies, friendly leaflets to persuade the populace etc. It is hard for the enemies of the West to do this back, since for various reasons they have a hard time flying planes over our lands to drop leaflets.

However, they could send spam. If I can get spam from Nigerians seeking money or from people enticing me to view kiddy porn, I am sure that Al-Queda could spam me as well. These could be truly terrifying spams aimed at creating terror, or more subtle spams pointing out the transgressions of our governments. The same problems that confound people trying to track spammers now would work to help Al-Queda-contracted spammers avoid detection and consequent bombs.

Such spams might also be a useful tactic for a government committed to unpopular policies - terrifying spam purported to be from AlQueda (but actually homegrown!) might increase fear of the enemy and support for the government.