"The CIA has claimed that the strikes conducted between May 2010 and August 2011 killed over 600 militants and did not result in any civilian fatalities; this assessment has been criticized by Bill Roggio from the "Long War Journal" and other commentators as being unrealistic.Unnamed American officials who spoke to "The New York Times" claimed that, as of August 2011, the drone campaign had killed over 2,000 militants and approximately 50 non-combatants.