Mt. Rushmore banner hang challenges Obama to be a leader on global warming

July 8, 2009 - Greenpeace climbers rappelled down the face of Mt. Rushmore and hung a banner reading "America honors leaders, not politicians. Stop global warming." The banner hang was meant as a challenge to Obama. If he wants his face to join the ex-presidents on the monument, he needs to rise to the challenge of his time, and lead the world's response to global warming.