This summer a group of high school students brought a whole new meaning to foreign exchange programs. Wendy Rojas of the Koreatown neighborhood of Los Angeles immersed herself in Sioux Falls, South Dakota. Expecting to see Mt. Rushmore, she instead found herself setting the record straight about her hometown. No, she explained to locals, her neighborhood is not overrun with gangs and rife with gunfire like they’d seen in the movies. Maggie Quine of Kilgore, Texas, was just as shocked with what she had to clarify to L.A. teens visiting her hometown. No, Texans don’t get around on horseback. Alt…