5/29: World responds to Syria massacre, Romney to clinch GOP nomination

      |The U.S. and eight other nations expelled Syrian diplomats from their capitals after Syria suffered its worst war crime in the country's 15-month-old civil war; Then, Mitt Romney is set to clinch the GOP presidential nomination after his projected win in the Texas primary; Also, the estimated 1.5 million tons of debris from Japan floating up on U.S. shores could take up to six years to clean up.

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