Visit: http://www.spacex.com/ for more information on SpaceX, Dragon, Falcon 9, Falcon Heavy, reusable rockets, grasshopper, Mars, upcoming rocket launch, or Elon Musk. SpaceX CEO & Chief Designer Elon Musk discusses the importance of making rockets reusable. Filmed at The National Press Club. For more information on SpaceX: http://www.spacex.com/ http://twitter.com/spacex http://www.facebook.com/SpaceX