Headlines for December 13, 2010; Bernie Sanders Denounces Obama-GOP Tax Cut in 8.5-Hour Senate Speech, Says U.S. Becoming "Banana Republic"; Climate Deal Reached in Cancún: Will the Agreement Help Save the Planet? ; Groups Protest U.N. Climate Summit for Shutting Out Civil Society; Life or Death: Small Island Nation of Tuvalu Pleads for Climate Resolution ; Young Environmentalists Challenge U.N. Climate Delegates: "Stop Talking. Start Planting"