U.S. officials say they have specific reasons to worry about security in Sochi, only three days before the Winter Olympic Games are set to open in the Russian city. Speaking at a House Intelligence Committee hearing on Tuesday, Matthew Olsen, director of the National Counterterrorism Center, highlighted concern over the Games and whether Muslim fundamentalists in disputed regions of Russia -- or other groups -- could launch deadly attacks on selected targets. "There are a number of specific threats of varying degrees of credibility that we're tracking," he said. "And we're working very closely with the Russians and with other partners to monitor any threats we see and to disrupt those."
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Chairman of the House Intelligence Committee complains about cooperation
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Austrian team receives threatening letter
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Russian President Vladimir Putin in Sochi three days before the Winter Olympics open
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Organizers are scrambling to get everything ready for the Games
Sochi
Sochi
"We think the greater danger from a terrorist perspective is in potential for attacks to occur outside of the actual venues for the Games themselves in the area surrounding Sochi or outside of @placeholder in the region."
Austrian
Concerns that have cast a shadow in the lead-up to the Games were heightened when two @placeholder competitors received a threat.
Vladimir Putin
@placeholder called the Games a grand project, "not just in terms of the external image of the city of making it more beautiful, more comfortable, but also in terms of the assistance, the social and economic, cultural and ecological aspects."