[applause] the students from oakton will be demonstrating a moon rock cannon. i believe that robotics can inspire young people to pursue science and engineering. i also want to keep an eye on the robots in case they try anything. [laughter] it is an honor to be here and to be joined by the first american woman in space. sally ride. [applause] she has inspired a generation of boys and girls to set their sights higher. i want to thank nasa for providing the interactive globe to teach young people about our world. i want to welcome smmyth busters from the discovery channel. [applause] i hope that you left the explosives at home. [laughter] finally, allow me to thank the many leaders here today who have agreed to be part of the historic effort to inspire and educate a new generation in math and science. we live in a world of unprecedented perils but also unparalleled potential. medicine can find new cures, but it is attached to a health care system that is bankrupting our government. we confront threats to our security that seek to exploit the openness that is esse