NEW YORK (Reuters) - He went to prison for fraud and was ordered by the U.S. government to stop touting health products on infomercials, but Kevin Trudeau's book "Natural Cures 'They' Don't Want You to Know About" is a bestseller. Trudeau, who for years sold snoring remedies and memory enhancers through long-format commercials dressed up as talk shows, says he is a consumer advocate battling the "unholy alliance" of drug companies and government regulators. "It's all about money. The drug industry does not want people to get healthy," he says in a commercial for his book. Trudeau says he has...