They want to scan outbounds? Stupid, stupid, stupid. You are preventing people from encrypting. (Yes, I know we're talking about the unclassified network. Doesn't matter; an email to your sweetie saying what time you'll be home, is worthy of encryption.)

Considering we are talking about DoD users here, and DoD users include soldiers. Emailing your sweetie to tell what time you will be home is in violation of OPSEC, and should be blocked from going out of the mail server in the first place.

Yeah I got a tip, blackbox.com

Couldn't your home wifi logs save you though. If your ISP is logging your internet connection activity for 2 years, and they find illegal activity, you could show on your logs that a MAC address that you don't own connected. I think it would be a get out of jail card. They couldn't prove that the illegal activity wasn't committed by the non-your MAC.....

Just a thought....

Actually I believe the GP is refering to Internal Combustion Engines. Considering the historical layout of modes of transportation....