To minimize the suicide bombing threat, Olympic organizers introduced blanket screening of all visitors, requiring them to share passport details to get a Winter Games spectator pass. Officials also cut access to vehicles lacking Sochi registration or a special pass, and guards were searching all train commuters. Some security rules were random: while journalists could bring food and drinks on the train, Olympic volunteers could not.
A parking lot outside Sochi airport was emptied in an attempt to minimize the threat from car bombs, forcing visitors to walk a long way to reach cabs or buses.
Shvedov said Sochi's transport infrastructure remained vulnerable to potential threats. He said there were no fences to protect some sections of the railway track, making it easily accessible, and warned that planes flying low over the sea toward the airport also could be targeted.
