Washington, DC -- President Obama on Thursday took to Twitter for an impromptu question-and-answer session following a speech on clean energy in Iowa. Sitting in front of a laptop, Obama bagan the hour-long session with the tweet, "this is barack - let's get this started! -bo." He then proceeded to answer seven questions ranging from America's dependency on oil to refinancing options for underwater home owners. The complete text is available at the top link below.