Steve Inskeep

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Sharks have been swarming around southern California beaches for weeks. NPR wanted to know more about why, so we placed a call to Chris Lowe, a professor in marine biology and head of the Shark Lab at California State University at Long beach — or rather, we tried. Lowe was offshore on a boat trapping sharks to tag, and at the appointed time for our interview, Lowe had his hands full ... of shark.

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Many Iranians spent the weekend in the streets celebrating the re-election of their president. Hasan Rouhani pledged to keep opening Iran to the world and to push for more freedom at home.

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What difference does it make who's president of Iran?

It's fair to ask the question on this weekend of Iran's presidential election. After all, the president's title makes him sound like the top official, but he is not. Iran's supreme leader, Ayatollah Ali Khamenei, holds far more power.

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