at the plant with respect to the operators. some say the operators are being held at gun point. other reports say they allowed a shift change this morning. moscow time, in the evening. so we're keeping our eye on what's going on there but we think that's a very high priority, to make sure there's a safe zone to get operators and shift changes in and out of the facility, ukrainian operators. so we're watching that closely and that is a concern. the whole world would prefer not to have tired operators or operators under gun point at that planned. >> just to be clear, is it your assessment, though, that russia still has control of the power plant? >> it is. we do believe that russia still has control of the power plant but ukrainians are operating the power plant. >> you were among those who briefed president biden last