Yeah, DARPA got spanked for wanting to set one up[1] and Jim Bell got personally destroyed[2] for writing about them[3] from a radical political viewpoint.
Right, and it had nothing to do with the fact it was proven he was using false identity documents to conceal money from the IRS. No sir. He was imprisoned just for writing an essay.
[1]http://en.wikipedia.org/wiki/Policy_Analysis_Market
[2] http://en.wikipedia.org/wiki/Jim_Bell
[3] http://www.outpost-of-freedom.com/jimbellap.htm