<p>AP Photo/NASA, Anita Barrett, file The space shuttle Columbia illuminates a cloud during its March 1, 2002 morning liftoff at the Kennedy Space Center in Cape Canaveral, Fla.</p>
July 7, 2011
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July 7, 2011 9 p.m.
NASA's old guard: Save Our Shuttle
Critics say agency ignoring its 'backup plan' rule
CAPE CANAVERAL, Fla. - A somewhat generational battle over NASA's future is escalating even as NASA is about to close the book on the space shuttle era.