Wired News: A Pretty Good Way to Foil the NSA: How easy is it for the average internet user to make a phone call secure enough to frustrate the NSA's extrajudicial surveillance program?Wired News took Phil Zimmermann's newest encryption software, Zfone, for a test drive and found it is actually quite easy, even if the program is still in beta.Zimmermann, the man who released the PGP e-mail encrypt