NEW YORK (Reuters) - The U.S. presidential envoy to the coalition fighting the Islamic State insurgent group said on Friday that a referendum on Kurdish independence in northern Iraq  carries a lot of risks.  The envoy, Brett McGurk, told reporters:  The (Kurdish) referendum just carries an awful lot of risks and that s not something the United States can control. ... In terms of the consequences of the referendum it s not something that we can fully control, (it) just carries a lot of risks.  
U.S. special envoy says Kurdish referendum has 'a lot of risks'