With the start of the Winter Olympics just two weeks away, there are increasing concerns about possible terrorist attacks in Sochi. Russian President Vladimir Putin has implemented a massive security effort after threats against the Games from nearby Dagestan.
Boston Globe reporter David Filipov, who will be covering the Games, was recently in Dagestan to report on the life of suspected Boston Marathon bomber Tamerlan Tsarnaev. He joined WBUR's All Things Considered to discuss the possible threat.
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