and it's not only attacked transmission station, which we've never seen before, sort of going up the circulatory system of the power grid, but it was a reusable and adaptable weapon for doing so. so you can swap out components to adapt it to other countries power grids, if you wanted to. in fact, that attack only took down the ukrainian grid in kiev, the capital, for one hour. you're not going to build a tool this sophisticated just to cause a one-hour blackout. that tool was built to be evolving and adaptable, to be used again. it's likely that we will see it used again. >> andy greenberg, really interesting. a senior writer for "wired" magazi magazine. we appreciate you being here. thank you. stephen colbert diving into the political fray, in russia. the late night host made an appearance on russian late-night tv to report that he's considering a 2020 presidential run. the announcement came after a few shots of vodka. >> i am here to announce that i