In Dallas, compressed natural gas (CNG) cabs get to cut in front of regular gas cabs at the Love Field Airport pick-up line. Justin Sullivan/Getty Images hide caption

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Omar Sharriff performs in Marshall, Texas in December 2010. Ron Munden/ hide caption

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Cornelius Dupree Jr. raises his hand to testify Tuesday while attorney Barry Scheck looks on. Dupree served 30 years in connection with a rape and robbery before being exonerated by DNA evidence. Mike Fuentes/AP hide caption

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Lumar C. LeBlanc was photographed for the Surviving Katrina and Rita in Houston project installation, "Who We Are." LeBlanc was interviewed by Dallas McNamara, a fellow Katrina evacuee, on Jan. 21, 2007. Dallas McNamara hide caption

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