climate change was the number one threat facing the world he doubled down and jen psaki said yes indeed it was. you ask the people here whether or not that's the greatest threat facing them, they would answer very, very differently. but looks, the nuclear issue is one that is coming into focus and a big win last. with the takeover of the nuclear facility, the largest in europe now and russian hands. it is a reminder both to the precariousness of the situation, no one is suggesting vladimir putin intends to use that yet although he has his own nuclear forces on high alert, but it it gives him such incredible control, control, it's a dormant weapon in his arsenal that he has that threat and also that he has the ability to turn off large parts of electrical supply to this country in the same way he can turn off electrical and gas supplies rather to europe. it is winter here, dead of winter, it's probably cold, he has many, many tools to his disposal now, this is another one. shannon question work >> makes you think he is and telegraphs in a more recent months saying openly what he planned to do