recently, carol corder cox bay, excuse my pronunciation, said the attack could have been carried out by people including president putin, but no longer under his control. do you find that a plausible explanation? johnson: i would go back to what i just said. of ait comes to the use trump type of nerve agent in attempt toto assassinate somebody who would be identified by the russians, a target for liquidation, not long after, president putin said such people would choke on their own dirty pieces -- deserve to be poisoned, no matter how exactly it came to be done. the pathway, the chain of responsibility seems to me to go back to the russian state. >> foreign secretary, why do you think putin, russia felt able to undertake such a despicable, illegal attack? secretary johnson: well, i think there's several reasons why the attack was made, the unlawful force, as the prime minister has directly to find -- correctly defined it. that president putin, the russian state wanted to give to potential sectors in their own agencies. this is what happens if you decide to support a country with diff