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NEAL CONAN, HOST:

This is TALK OF THE NATION. I'm Neal Conan in Washington. Students in many schools across the country will notice something new as classes' resume. Clifton High School in New Jersey, Garnet Valley High School in Pennsylvania, Ottumwa High School in Iowa, just three of the many schools that installed security cameras in hallways, classrooms, cafeterias, in buses and gymnasiums.

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NEAL CONAN, HOST:

Transcript

NEAL CONAN, HOST:

This is TALK OF THE NATION. I'm Neal Conan, in Washington. In just over two months in office, Egyptian President Mohammed Morsi has asserted himself on several fronts. Just weeks after his election, he fired several senior defense officials, effectively seizing power from the military government that ruled after former President Hosni Mubarak stepped down.

Cholera vaccine gives indirect protection to unvaccinated people in communities where a substantial fraction of the population gets the vaccine, a study in Africa shows.

The effect is called "herd immunity." It works because there are fewer bacteria circulating in communities where vaccination levels are relatively high.

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DAVID GREENE, HOST:

NPR's business news starts with auto sales on a fast track.

(SOUNDBITE OF MUSIC)

Live! With Kelly is now Live! with Kelly and Michael.

Michael Strahan, a retired defensive end from the New York Giants, was officially named today to fill Regis Philbin's slot on ABC-TV's popular daytime chat show.

"All three Detroit automakers saw double-digit sales increases in August compared with the same month last year," the Detroit Free Press writes. The gains "show that the automotive industry remains one of the economy's few bright spots," it adds.