ReutersUPDATE 2-Dunkin' Brands cuts 2014 forecasts, shares tumbleReuters(Adds details on results, company comment). July 24 (Reuters) - Dunkin' Brands Group Inc cut its full-year forecasts on Thursday, as its U.S. Dunkin' Donuts shops battled fierce competition from fast-food rivals like McDonald's Corp and as high milk prices ...Dunkin' stock dunked on poor salesCNNMoneyWhy Dunkin Brands (DNKN) Stock Is Sinking TodayTheStreet.comDunkin' misses estimate, cuts outlookCNBC.comMarketWatch -Wall Street Journal -Fox Businessall 22 news articles »