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Cement

Workers exposed to cement powder in Tucson plant accident

Workers exposed to cement powder in Tucson plant accident

Workers at a northwest-side cement plant were exposed to cement powder Monday morning when a silo valve malfunctioned and dumped the material onto them. 

October 28, 2013 7:58 am Photos

Photos

Construction of the Berlin Wall

Construction of the Berlin Wall

An East German worker lays some of the first stone blocks of the Berlin Wall, August 1961, shortly after the border between East and West Berlin was sealed. (AP Photo)

August 13, 2013 12:00 am

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