In Brazil, epicenter of the Zika virus, local authorities and organizers of the upcoming Olympic Games have been striving to assure the world that it's safe for athletes and tourists. The World Health Organization has issued a series of guidelines…
By PBS NewsHour
In a report from Brazil, Margaret Warner examines how the country is pursuing deepwater oil drilling even as the Gulf of Mexico spill raises new environmental concerns about the risks involved.
Chicago's Olympic hopes were dashed Friday when it was eliminated in the first round of voting for the 2016 host city, following a star-studded bid that featured personal appeals by President Barack Obama, the first lady and Oprah Winfrey.
By Talea Miller
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