Why was "Looking For Alaska", the debut novel of John Micheal Green (born in 1977), challenged in 2015?
John Green (author): John Michael Green (born August 24, 1977) is an American author, vlogger, writer, producer, actor and editor. John Green (author):  He won the 2006 Printz Award for his debut novel, "Looking for Alaska", and his sixth novel, "The Fault in Our Stars", debuted at number one on "The New York Times" Best Seller list in January 2012. Looking for Alaska:  It won the 2006 Michael L. Printz Award from the American Library Association, and led the association's list of most-challenged books for 2015 due to profanity and sexually explicit scenes.
profanity and sexually explicit