“We’re talking about censorship,” Ms. Le Guin wrote... “Governments use censorship for moral and political ends, justifiable or not. Amazon is using censorship to gain total market control...This is more than unjustifiable, it is intolerable.”

http://www.nytimes.com/2014/09/29/business/literary-lions-unite-in-protest-over-amazons-e-book-tactics.html?_r=1