Well, I know this is an older article, but that adage "YOU CAN RUN, BUT YOU CAN'T HIDE" should make some bad guys sweat, look over their shoulder, wonder who's listening to them....yep.
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http://news.com.com/Feds+fund+VoIP+tapping+research/2100-7348_3-5825932.html
"Feds fund VoIP tapping research"
Published: August 9, 2005, 4:54 PM PDT
By Declan McCullagh
Staff Writer, CNET News.com
ARTICLE SNIPPET: "The federal government is funding the development of a prototype surveillance tool by George Mason University researchers who have discovered a novel way to trace Internet phone conversations.
Their project is designed to let police identify whether suspects under surveillance have been communicating through voice over Internet Protocol (VoIP)--information that would be unavailable today if people choose to communicate surreptitiously. The eavesdropping technique already has been shown to work with Skype, the researchers say."
ON THE NET...
U.S. CERT.GOV
http://www.us-cert.gov