russian troops were firing at the plant from all sides. by this point, the international atomic energy agency said that staff inside the plant were trying to mitigate any potential risks. there were plenty. a fire broke out at some point after that, and the mayor said firefighters were unable to actually get to the site because of the fighting there, and he was warning about the potential for a nuclear accident. it turns out the fire itself was actually in an auxiliary building, separate from the actual reactor itself, which had been used for training. the trouble now is that the ukrainians have confirmed that the russians are in charge of that site, in control of that site. they're controlling a checkpoint, and administration building as well. thankfully the folks who know how to operate the site, the staff, are running it right now. >> joining us now deputy director at the atlantic council, matthew kroenig, he worked at the cia and the