here is what kinds of economic sanctions and i reported in early january that they were considering export controls on semiconductors and other high-tech components that russia needs for its industrial complex. now that's been ramped up. that's one of the things that is front and center. how, you know, important could that be as a pressure tactic against russia. >> we are definitely hearing, andrea, that the commerce department and other parts of the u.s. government are preparing a significant set of restrictions, export controls, changes to the rules and regulations that govern how technology can go to russia, and i think this is very important because it's a way to deprive the russian economy of certain technologies. but look, this has to be calibrated and done with precision because as michael pointed out, you know, no tool of state craft is perfect. obviously if there was a perfect tool, we would employ it, but whether you engage in military actions, you worry about collateral damage and collateral effects when you engage in cyber