The National Institutes of Health released new stem cell research guidelines Friday, and the U.S. ship captain taken hostage by Somali pirates returned to American soil.

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In the day's other news, the stock market rose on new signs of life in the recession-weary economy and Somali pirates unsuccessfully tried to attack another U.S. ship.

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In the day's other news, markets fell on news of poor retail sales in March, and Somali pirates attacked four more ships in the Gulf of Aden since the rescue of a U.S. sea captain Sunday.

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Thai soldiers intensified their efforts to tamp down anti-government protests in Bangkok Monday, and Pakistan's president signed a regulation imposing Islamic Law in part of the country.

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In other news, five U.S. soldiers died in a suicide bombing in Mosul, Iraq, and clashes between U.S. forces and the Taliban in Afghanistan left 27 insurgents dead.

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In other news, President Obama urged homeowners to take advantage of new programs designed to help them refinance their mortgages at lower interest rates. Also, Kim Jong-il accepted a third term as North Korea's supreme military leader.

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In other news, the death toll from Monday's earthquake in central Italy continued to rise and a bomb near a sacred Baghdad shrine killed at least seven people and wounded 20.

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In other news, President Obama spoke to the Turkish parliament, urging better cooperation between the west and the Muslim world and a string of six bombings in Baghdad killed at least 36 people.

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Sales at Detroit's Big Three automakers dropped 45 percent from a year ago, and the markets rose slightly on good news in the housing and manufacturing markets.

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In the day's other news headlines, Wall Street rallied after the Fed announced more funds to stimulate the economy and Vice President Joe Biden warned county and city officials not to squander stimulus funds.

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