There is a general American English Accent which can be found across the United States.  As more people from specific regions have begun to migrate across the country in search of jobs and other opportunities, the accents that used to distinguish certain areas are slowly disappearing.  Even Americans who grew up in the United States and speak only American English sometimes choose to work individually or with a speech-language pathologist to change their accent.  Although this fact may seem surprising, the reality is true.  A Northern Midwest American Accent is widely considered standard American English and is most often spoken by scholars and other well educated individuals including national television and radio commentators and hosts.