A devastating, magnitude-7 earthquake struck Haiti on Jan. 12, killing as many as tens of thousands of people. The quake flattened much of Port-au-Prince, the capital of two million people, bringing down buildings great and small, from shacks in shantytowns to President Rene Preval's gleaming white National Palace. The world is mobilizing to lend assistance to the poorest nation in the Western Hemisphere. To donate to Philadelphia Haiti Relief, click here. Read thelatest news from Haiti.