How about refusing any Tor traffic (as the EU already does), irrespective of the used protocol, encrypted or not? 1. invent Tor 2. subsidize it 3. privatize it 4. force target traffic to use Tor 5. kill Tor access at nsp level 6. finish off remnants If I'm correct Shava Nerad (ex-EFF) had a while ago some quite perky pointers in that direction. /T ... Oh, cool. I was going for more paranoid than that - if you're an email provider and the NSA has given you an order to retain all data and rat out all your customers, theoretically you don't even want to accept that much, but if it's feeding into Tor or some remailer anyway, non-PGP mail won't get very far, and you're less likely to be the kind of service provider who gets NSA/FISA orders.