killed have not been released. the bus slid into a sign pole that sheared its roof off. transportation officials are investigating that. we're also watching what is happening here in a shuttle accident. this is according to what we're hearing, a worker at launchpad 39 fell and was killed. what we understand is that they were working on the space shuttle "endeavour" at the time. investigation is under way there. again, a worker at launchpad 39 working on "endeavour" has fallen and died. also breaking news right now, we're getting out of massachusetts, a team of investigators are looking into a situation where a chemical plant exploded, shaking a massachusetts neighborhood. it sent four people to the hospital. again, that explosion happening in massachusetts. we're watching all of those peeszs of breaking news for you. we're also watching japan, of course. social media has played an important role as the catastrophe develops there. google people finder went live