Talk of the Nation on KAZU

All throughout the school's 110-year history, the Manassas High School football team in Memphis, Tenn., was known as a losing team. In 2009, volunteer coach Bill Courtney led the struggling Manassas Tigers to the playoffs.

Filmmakers Dan Lindsay and T.J. Martin chronicle the challenges of the team — on and off the field — in the documentary Undefeated.

Lindsay and Martin talk with NPR's Neal Conan about the film, nominated for an Academy Award in the documentary feature category.

Traffic cameras that snap pictures of cars running red lights or speeding are used in 661 cities around the U.S. NPR's Corey Dade explains that while local governments argue they make driving safer, some motorists believe the cameras are nothing more than revenue generators.

Journalist Marie Colvin, of Britain's Sunday Times, was killed in Syria Wednesday — along with French photographer Remi Ochlik. NPR's Neal Conan remembers the foreign journalist who joined Talk of the Nation several times, reporting from Gaza and Libya.

Some analysts are calling the GOP primary in Michigan a do-or-die state for Mitt Romney, who grew up in the suburbs of Detroit and whose father was a popular governor in the state. NPR's Ken Rudin and NPR's Don Gonyea discuss the Michigan primary.

Wikipedia is the go-to source for succinct information on almost every topic imaginable. It strives to reflect neutral truths that can be verified by reliable sources. The site, known as "The Free Encyclopedia" is written and edited by volunteers.