Great suggestion. Here's a few ideas off the top of my head

- probably the most important: talk with your friends and family about the issues and try to get them beyond their fears.

- if you've got a few $ to spare, contributed to groups like EPIC (who's leading the lawsuit against the TSA scanners), EFF, BORDC, and ACLU.

- call your congressperson's office and let them know that these are important issues to the country, you expect them to take an active role, and it will be affecting how you vote in 2012.

- specifically on the TSA, adjust your habits to reduce (or even better eliminate) flying. when you do fly, take educational material with you to the airport, talk with people next to you in line, and opt out of the scanners.

- and track what's going on; there are likely to be some intense activism campaigns once Congress gets back into session, and plenty of opportunities to get involved online or off