the sochi games are no different. they want to avoid a repeat occurrence of a bomb that killed two at the games in atlanta. >> what concerns me is when you harden targets, you often force terrorists to select softer targets, so that makes everything else in sochi and the surrounding area vulnerable. >> reporter: targets like transportation hubs where tourists and athletes travel to and from the games. president putin's claim he can protect the olympics also rests in part whether he can control the situation in the north caucuses, he claims that he can. but it would seem as though terrorists are intent on proving he cannot. >> let's talk to richard barrett, former counter terrorism director for britain's mi6. he is a senior vice president for a security consulting firm. richard, to what extent should