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Boston Red Sox's Xander Bogaerts falls in the batter's box as he is hit by a pitch thrown by Detroit Tigers reliever Evan Reed during the seventh inning of a baseball game at Fenway Park in Boston, Friday, May 16, 2014. (AP Photo/Charles Krupa)
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This May 10, 2014 photo provided by the Waste Isolation Pilot Plant shows waste stacks in a storage room with broken magnesium oxide bags and heat damage, seen as black streaks on the rim of the container at center, on top of a standard waste box at the WIPP site in Carlsbad, N.M. A radiation release that has indefinitely shuttered the federal government's only permanent nuclear waste dump may have been caused by a change in the type of kitty litter that is mixed with the toxic waste, the Carlsbad Current-Argus reported Tuesday, May 13, 2014. A scientist who worked at the facility from 2000 to 2010, told the newspaper he believes a change from non-organic to organic litter caused a chemical reaction inside a waste drum, releasing the radioactive isotopes. (AP Photo/Waste Isolation Pilot Plant)
