breaking news in the investigation of that deadly attack in syria. we have barbara star live in washington. breaking details. the big question is who did it. what do we know now. good morning, chris. now there is no doubt in the miebds of the u. minds of u.s. military that assad did carry out this attack. they have been looking at technical intelligence. through radar they have been able to pick up the tracks of the regime aircraft in the air at the time. the u.s. military can determine who those aircrafts belong to. they know they track them. that s through radar. through infrared, heat signatures, they know those war planes dropped bombs in this area at the time of the attack. so it all adds up. radar, heat signature. they know planes were in the
washington. now, we have confusion at the airport in one region in ukraine. you have russia conducting military exercises on the border there. i want to know what your take is on what you think did we lose fred? we lost him for one second. barbara, let me get your take on what is really unfolding from the u.s. perspective over there. i think that what the u.s. is worried about right now may not be the full-scale russian invasion. nobody really thinks at this point that s what s going to happen. but are we seeing this morning at the airport and other areas, the emergence of the actual russian strategy. small incursions, if you will, small areas like airports where russian-backed, russian supported militia or troops go in and take control. if they are supported by moscow,
russia. just over the border, russia continues to ratchet up their military exercises positions fighter jets and deploying armored personnel carriers. i expect russia to be transparent about these activities and i urge them to not take any steps that could be misinterpreted. reporter: those russian military exercises across the border in russia now include 80 combat helicopters flying along next to the ukrainian governor. there s no confirmation from the russian government that it is connected to the crisis in the ukraine. it s setting off on intense round of phone calls. let s talk more about what this all means with our international correspondent from our moscow bureau and barbara star live in