Experts examine the unrest between Shiite militias and Iraqi security forces in Basra and what it may mean for the region. Five years in, Paul Solman examines the new estimates for short- and long-term expenditures related to the Iraq war. Treasury Secretary Henry Paulson said Wednesday that investment banks may require the same government oversight that commercial banks face. A huge slab of ice has fallen off the Antarctic peninsula, threatening the ice shelf behind it. A scientist explains what the collapse may mean.moreless
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