Richard Cohen is an idiot. The idea that you can make gay people straight is laughable at best and abuse in reality. Homosexuality is a genetically determined predisposition, and you cannot undo that with "therapy" or anything else. This guy was kicked out of the American Counseling Association for ethical violations. He is not licensed in any state.
Maddow quotes from Cohen's book:
Maddow: Let me ask - I‘ll just read from your book, OK? Page 49, “Homosexuals are at least 12 times more likely to molest children than heterosexuals. Homosexual teachers are at least seven times more likely to molest a pupil. Homosexual teachers are estimated to have committed at least 25 percent of pupil molestation; 40 percent of molestation assaults were made by those who engage in homosexuality.”Those "stats" are absolutely false, and he does not acknowledge that when he says he plans to take them out of the 3rd edition of the book that is being used in Uganda to justify killing gay men and women.
You can read the whole transcript here.
Or you can just watch the videos.