In an interview last month, Whole Foods Market (Nasdaq: WFM) founder and co-CEO John Mackey shared his concerns over the state of America's fiscal and political situation. Watch the video below to see why Mackey is a long-term optimist, despite his worries that, if our leaders don't make the necessary changes, "Greece is just a few years away for our country." (A transcript is provided below; running time: 3:54.)

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