INFORMANT

Richard Wershe Jr. is suing FBI agents, Detroit police and others a year after he was released from prison.

A criminal himself, he was no James Bond, but undercover informant Michael Blutrich was nevertheless one of the most effective civilian informants ever, according to authorities. Anderson Cooper reports.

An Unlikely Informant, The Unknown America, King of Crossfit Anderson Cooper interviews undercover informant Michael Blutrich, one of the most effective informants ever, according to authorities; then, with over 50 percent of our nation lying underwater, huge discoveries await, says explorer Robert Ballard; and, Sharyn Alfonsi profiles Greg Glassman, creator of the CrossFit workout.

A criminal himself, he was no James Bond, but undercover informant Michael Blutrich was nevertheless one of the most effective civilian informants ever, according to authorities for whom he helped indict many Mafia members. Anderson Cooper reports on Sunday, May 10 at 8 p.m. ET/PT.