Transcript for 'This Week': Olympics on Edge
Good morning and welcome to a special edition of this -- from so you ride. Olympics on -- Breaking overnight new terror threats against the games he didn't. We'll get the latest from Brian Ross in the congressional chairman tracking Olympic security. Plus soaring cost of corruption a global uproar over -- -- -- lot of big challenges ahead of the world's most powerful president. Gay -- lesbian athletes engaged in some sort of protests would -- be free from prosecution. This morning Vladimir Putin only on this week. Then President Obama revealed his -- -- -- reforms. And is the worst over for Chris Christie -- spindles reading. The powerhouse roundtable takes it all on this Sunday morning. From ABC. This Week with George Stephanopoulos starts now. Hello again I'm just back from that interview with President Putin at the site of the Sochi Olympics. And we begin with breaking news on the biggest challenge of those games the threat of a terrorist attack. Our chief investigative correspondent Brian Ross is here with the latest in front we've seen overnight is this video from those who were responsible they say from the bombings in Russian just last month. That's -- George this new video so called martyrdom video purport to show the two men who carried out suicide attacks in the town of -- -- In late December against the train station there. And also against a computer trolley. They say they have more in store they called a surprise package coming for socially and specifically -- targeting tourists will be going to the Olympic Games. Senate President Putin vowed to me and other journalists he's gonna do whatever it takes and there -- also putting out the Russian security services. Overnight -- video saying they disrupted an operation. That's right this new video illustrates sort of the tough iron fist approach that President Putin has taken it kind of take no prisoners approach. In this video they say they attacked the stronghold of militants and killed seven of them. Security is very much on edge there as you know George and of -- -- tomorrow is today the Olympic Torch relay goes through that city. And meanwhile what is the US what is US intelligence picking up. About possible threats to them. Well there -- obviously very concerned they're hearing in the same things in their own intelligence sources indicate. This group has the means and the intention to attack either in Sochi or outside of Sochi somewhere else in Russia. All of the goal of embarrassing President -- The US are working and a top secret plan to provide for the evacuation from Sochi but in the US athlete or VIP who's there if there is an attack. And the US ski teams actually hide their own evacuation. Teams here -- -- said on Friday this is all under control. The -- -- isn't getting a little frustrated because they actually wanna give more help. They want to give more help with the Russians seem to say this is our show or run our show the label on it. They don't seem particularly interested in being advised or advising Americans -- going to be there. There will be small teams of US armed security personnel and guarding the US teams but perhaps not as many as the US wants. They're afraid if they complain too much publicly Russia may even further restrict the number of US personnel who can be -- -- providing security. OK Brian Ross thanks very much.
This transcript has been automatically generated and may not be 100% accurate.