In this Wednesday, March 18, 2015 photo, a quarry worker wearing a face mask to protect from dust tries to stay balanced while arranging cut stones at a quarry in the desert of Minya, southern Egypt. (AP Photo/Mosa’ab Elshamy)
In this Wednesday, March 18, 2015 photo, a quarry worker wearing a face mask to protect from dust tries to stay balanced while arranging cut stones at a quarry in the desert of Minya, southern Egypt. (AP Photo/Mosa’ab Elshamy)
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