By: Mark Leon Goldberg on February 10, 2011 Susan Rice is heading to Twitter headquarters in California today where she will host a live, online video chat. You can ask @ambassadorrice questions using the Twitter hashtag #AskAmbRice and watch the chat on Ustream. The event takes place at 10am Pacific time/1pm Eastern. Fortunately, everything is embeddable. I’ve go the live video, social stream and chat logs follow all queued up. Check back in a few hours. In the meantime, think of something to #AskAmbRice. (And. of course, follow us @undispatch) Live Video: Free Videos by Ustream.TV Follow the Social Stream. And Chat