year. as you recall the russians warped the fbi that tamiflu was tamerlan tsarnaev believer in radical islam and fbi did not react quickly enough on the tip. jon: everybody wonders what it mines when the olympics start next month? >> reporter: teams are starting to arrive in sochi amid what is very heaviesability security. the nation's top counterterrorism official testified publicly but we heard privately from intelligence officials in this case it shows seems the most vulnerable sights will be outside the russian security perimeter. >> the biggest issue from my perspective is not games themselves, venues themselves. the greater threat is to softer targets in the greater sochi area and in the outskirts beyond sochi where there is a substantial potential for a terrorist attack. >> reporter: and short time from now we do expect to get more questions at the state department briefing over whether there will be specific warnings,