May 7, 2012 12:00 AM

Mass transit: ‘This is something I can do’ for greater good

Arnold Karr rides the bus but not because he has to. “It was partly an economic choice on my part,” says the 59-year-old retiree. “But it was also partly out of self interest.” All those years of commuting from Columbia to the Trenton Correctional Institution in Edgefield County might have had something to do with it.

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