Benoit Denizet-Lewis is a writer with The New York Times Magazine and the author of America Anonymous: Eight Addicts in Search of a Life. His new book, American Voyeur: Dispatches from the Far Reaches of Modern Life, a collection of his writing, is out this week. Visit him at www.benoitdenizetlewis.com.

Most experts say you can’t change the people you love who are addicts, but Brad Lamm’s controversial book says intervention is the key. Benoit Denizet-Lewis knows from experience.