Two workers take a break at the Sanki Sliding Center, a venue for bobsleigh, skeleton and luge at the 2014 Winter Olympics, Friday, Jan. 31, 2014, in Krasnaya Polyana, Russia. (AP Photo/Jae C. Hong)
In a photo taken through a fence, security personnel patrol a boardwalk outside the Olympic Park as security measures are put into place ahead of the 2014 Winter Olympics, Wednesday, Jan. 29, 2014, in Sochi, Russia. (AP Photo/Pavel Golovkin)
Russian security personnel wait for deployment in the Olympic Park as security measures continue to be implemented for the 2014 Winter Olympics, Thursday, Jan. 30, 2014, in Sochi, Russia. (AP Photo/Pavel Golovkin)