Change comes to Washington

Former presidents, lawmakers, dignitaries and an estimated 2 million average citizens huddled in freezing weather on Capitol Hill to watch Barack Obama take the oath as the nation's first black president. "I stand here today humbled by the task before us, grateful for the trust you have bestowed, mindful of the sacrifices borne by our ancestors," Obama said in his inaugural address. Moments later, former President Bush and Laura Bush left to fly home to Texas.