http://wikipewt4n75trifcse2ggaieot27svognl7idu6xmmqn37kf64rvsyd.onion/index.php/Intrusive_Surveillance
It is possible to customize Knoppix using a USB key, so a Knoppix CD+tor on your USB key might be helpful if you frequently find yourself in shady labs. The Knoppix Wishlist includes Tor, so maybe that will happen someday. For pre-configured, pre-tested Tor environments, you can try out Tails Live or Anonym.OS , which are boot cd that include Tor and have everything preconfigured to use it.