/articlesil 00000-us-prisoners-are-trapped-isolation-units-solitary-author-and-forensic-psychiatrist 100,000 U.S. Prisoners Are Trapped in Isolation Units. 'Solitary' Author and Forensic Psychiatrist Terry Kupers Explains Why In his stark new book, "Solitary: The Inside Story of Supermax Isolation and How We Can Abolish It," veteran forensic psychiatrist Terry Allen Kupers explores the rise of supermax prisons…