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The Summer Olympics in Rio de Janeiro are just 10 weeks away, but a large group of medical professionals are pushing for the games to not go on as scheduled.

The Summer Olympics in Rio de Janeiro are just 10 weeks away, but a large group of medical professionals are pushing for the games to not go on as scheduled. More than 150 health experts are standing behind an open letter to the World Health Organization stating concerns over the global spread of the Zika virus. Marlie Hall reports.

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A new study finds "ultra-processed" foods make up more than half of all the calories in the U.S. diet

A new study finds "ultra-processed" foods make up more than half of all the calories in the U.S. diet. Also, the United Nations is highlighting the importance of a group of foods that can have big benefits for your health -- "pulses." Finally, could a bit of chocolate help keep your brain sharp? CBS News contributor Dr. Holly Phillips and Samantha Heller, a registered dietitian and exercise physiologist, join “CBS This Morning: Saturday” to discuss these health issues.

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The Secret Service is leading the huge security operation, involving nearly 50 agencies

The Secret Service is leading the huge security operation, involving nearly 50 agencies. The largest of them is the New York City Police Department. Francis will be criss-crossing Manhattan, traveling from the U.N. to Ground Zero, among other places. Norah O’Donnell spoke with NYPD's police commissioner and the chief of counterterrorism about the unprecedented security surrounding the pontiff.

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Satellite photos show Russian combat planes parked at a Syrian air base, and Moscow recently flew more than two dozen fighter jets to Syria

There are new concerns over Russia's growing involvement in the Syrian conflict, with reports of Russia and Iran coordinating efforts to protect the regime of Syrian President Bashar al-Assad. Satellite photos show Russian combat planes parked at a Syrian air base, and Moscow recently flew more than two dozen fighter jets to Syria. Samantha Power, the U.S. ambassador to the United Nations, joins “CBS This Morning” to discuss the situation in Syria and the #FreeThe20 campaign for female political prisoners.

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