This is a Google videowith a guy who says that you can use encrypted voice Over IP (VoIP) to avoid having your phonecall wiretapped by NSA.
Why Bush’s NSA Wire tapping is defeated by VoIP Networks
He mentions the software telephone-server www.asterisk.org
He also says that obviously the real terrorists (ed: if any such exists) does not use the regular tappable phone-services, so when Bush Authorizes NSA to wiretap any regular phobecall, they’re not really hunting terrorists, but i fact terrorizing regular people.