Pakistan: 'U.N. appeals for quake refugees. Aftershocks rattle region as 800,000 living without shelter. The United Nations warned that 800,000 people remain without shelter more than two weeks after South Asia's colossal quake, and repeated its urgent appeal for more aid. As powerful aftershocks continued to rattle the region, a top U.S. commander said the United States would step up its relief efforts.' (CNN)