An ex-C.I.A.agent was sentenced for leak that was not publicly disclosed. However, In 2007, three years after he left the C.I.A., John Kiriakou discussed in an interview on ABC News the suffocation technique that was used in the interrogations known as waterboarding and admitted it was torture. http://www.nytimes.com/2013/01/26/us/ex-officer-for-cia-is-sentenced-in-leak-case.html?ref=us He said it should no longer be used by the United States.