Automatic voice encryption, developed by genius Philip Zimmermann, the bain of Goverments. He gave us "Pretty Good Privacy" for encrypting mail, using a public key.
Now gives us automatic key encryption of Speech/Voice/Telephone mail. Its known as Voice-over-Internet protocol, or 'VoIP'.
Not for Skype, yet? (Google bought Skype)
Get it while its still legal, or read about it.

http://www.philzimmermann.com/EN/background/index.html

http://www.nytimes.com/2006/05/22/technology/22privacy.html?_r=1&th&emc=th&oref=slogin

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"You will never find a real Human being - Even in a mirror." ....Mike Kremer.