In this Wednesday, March 18, 2015 photo, quarry workers are enveloped in dust at a limestone quarry in the desert of Minya, southern Egypt. (AP Photo/Mosa’ab Elshamy)
In this Wednesday, March 18, 2015 photo, quarry workers are enveloped in dust at a limestone quarry in the desert of Minya, southern Egypt. (AP Photo/Mosa’ab Elshamy)
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