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 Broad New Oversights Pitched for Ailing Financial Systems In the wake of the subprime mortgage crash and the bailout of a prominent U.S. investment firm, Treasury Secretary Henry Paulson on Monday outlined an administration proposal for increasing the regulation of financial institutions and markets. A Treasury official and other financial experts discuss the proposed changes.

     

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 McCain Seeks Spotlight as Democrats Court Pa. Voters Democratic candidates Barack Obama and Hillary Clinton hit the campaign trail in Pennsylvania while presumptive GOP nominee John McCain embarked on his "biography tour" to steer political attention his way. Judy Woodruff reports on the latest news from the campaign trail.

     

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 Researchers Examine Impact of Exercise on Aging Scientists have coined a new term -- geroscience -- to describe research that aims to slow down aging and delay the onset of age-related diseases like Alzheimer's and Parkinson's. Researchers are studying the underlying genetic causes of aging and effects of exercise.

     




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 Iraq, Democratic Rivalry Top the Week's Headlines New violence in Iraq pitted security forces against Shiite militias, likely GOP nominee Sen. John McCain outlined his foreign policy plans and Democratic Party chairman Howard Dean called for a cooling of the rhetoric between presidential rivals Barack Obama and Hillary Clinton. Mark Shields and David Brooks discuss the week.

     

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 U.S. Forces Launch Airstrikes as Fighting Flares in Basra, Baghdad U.S. forces launched airstrikes Friday in Basra, joining Iraqi forces in an effort to quell Shiite militia fighting in both the southern port city and in parts of Baghdad. New York Times reporter James Glanz provides an update on the latest developments from Baghdad.

     

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 New Book Examines the Bin Laden Family Author and journalist Steve Coll's new book "The Bin Ladens: An Arabian Family in the American Century" documents Osama bin Laden's upbringing and family environment. Coll discusses his new book with Margaret Warner.

     

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 South by Southwest Festival Changes Music's Tune For about a week each year, hundreds of bands perform at more than 80 venues throughout Austin at the annual South by Southwest festival, which has become a major showcase for budding and established musicians, the music industry and music fans.

     

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 Candidates Keep Tight Focus on the Economy All three presidential hopefuls weighed in on current U.S. economic turmoil this week, outlining their solutions for issues ranging from soaring foreclosure rates to government oversight of investment banks.

     

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 Americans Grim on Economy, Split on Presidential Race A Pew Research Center poll finds that Americans have a strongly negative view of the economy, are closely split over support for presidential candidates and that the controversial remarks of Sen. Barack Obama's former pastor, Rev. Jeremiah Wright, have not hurt the candidate's campaign. Pollster Andy Kohut explains the numbers.

     

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 Election Draws Attention to Race, Religion in U.S. The issues of race and religion have come to the forefront of Americans' minds during this election season, most recently after Sen. Barack Obama's speech last week on racial divisions in the U.S. A panel discusses how race, religion and politics are intersecting with the 2008 presidential campaign.

     

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 Volunteers Shape Frontlines of TB Fight in Bangladesh Tuberculosis -- a potentially fatal but treatable lung disease -- infects 300,000 people in Bangladesh every year. Fred de Sam Lazaro reports on a success story in the country's fight against TB, which relies on local women trained to spot and treat infected patients.

     




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 Iraqi PM Calls on Militias to Cease Fighting in Basra Iraqi Prime Minister Nouri al-Maliki issued an ultimatum Wednesday for Shiite militias to lay down their arms against Iraqi security forces in Basra on the second day of deadly fighting among rival factions vying for power in the oil-rich city. Experts examine what the unrest may mean for U.S. military efforts.

     

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 Five Years In, Cost of Iraq War Far Exceeds Early Estimates In a follow-up report to a series on the cost of war, Paul Solman examines the new estimates for short- and long-term expenditures related to the ongoing conflict in Iraq -- including military recruitment, equipment and medical treatment for those injured.

     

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 Paulson Urges Oversight in Wake of Bear Stearns Bailout Treasury Secretary Henry Paulson said Wednesday that investment banks may require the same government oversight that commercial banks face if they will borrow federal money. Economic analysts weigh the pros and cons of increased federal regulation.

     

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 Ice Shelf Disintegrating Off Antarctica Peninsula A huge slab of ice has fallen off the western Antarctic peninsula, threatening the ice shelf behind it. Scientists say the collapse shows how quickly polar changes can occur amid certain climate conditions. A climatologist explains.

     




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