In this combination of four photos taken on Wednesday, March 18, 2015, limestone quarry workers pose for a portrait at work in the desert of Minya, southern Egypt. From left: Agayeb Bushra, 35; Kirollos Aziz Bushra, 27; Samuel Fahim, 17 and Ayman Kamel, 18. (AP Photo/Mosa’ab Elshamy)