July 1, 2010
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.
June 24, 2010
As we flew into Rio de Janeiro Wednesday, the city's jagged emerald mountains, sapphire blue waters and ribbon of white beaches seemed as pristine and beautiful as advertised, a natural paradise for residents and vacationers alike.