Prometheus 6

There's warnings about organized crime getting their hands on the tech (not like they can't jack your landlines already). To my mind, that includes the Bush administration. And there may be no legal way to stop it. This is essentially a packet sniffer, old well established tech. I don't think it's illegal to load a trojan on your own machine. 

Expert scares world with VoIP hacking proof
Ex-BorderWare guru strips IP calls naked.
John E. Dunn, Techworld
22 November 2007

An expert has released a proof-of-concept program to show how easy it would be for criminals to eavesdrop on the VoIP-based phone calls of any company using the technology.