A video screengrab shows riders in the Critical Mass bike ride last Friday, seconds before a car sped through the Porto Alegre street.
March 2, 2011 The driver of the car that plowed through a large crowd of people riding bikes during a Critical Mass event in Brazil last week is now under arrest. He may face charges of attempted homicide.
Cars sit in debris in a flooded street in Teresopolis, Rio de Janeiro state, Brazil, on Wednesday (Jan. 12, 2011).
January 13, 2011 Many more people are missing, local news media report. Driving rains sent earth sliding down mountains into towns in the south-eastern part of the country.
March 10, 2009 Brazil's economy skids, but its stock market rises. What's going on?
June 17, 2008 All about "uncontacted" tribes in the Amazon with explorer Scott Wallace.
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