U.N. report reveals secret law enforcement techniques

"Point 201: Mentions a new covert communications technique using software defined high frequency radio receivers routed through the computer creating no logs, using no central server and extremely difficult for law enforcement to intercept."

PDF Article: http://www.unodc.org/documents/frontpage/Use_of_Internet_for_Terrorist_Purposes.pdf

Story: http://www.hacker10.com/other-computing/u-n-report-reveals-secret-law-enforcement-techniques/