A young man covers his face with his T-shirt while riding a 

A young man covers his face with his T-shirt while riding a bicycle on a road covered with volcanic ash spewed from the San Cristobal volcano, near Chinandega, Nicaragua, Saturday, Sept. 8, 2012. Nicaragua’s tallest volcano, located about 70 miles (110 kilometers) northwest of Managua, near the Honduran border, has let off a series of explosions, spewing gases and showering ash on nearby towns, prompting an evacuations of residents. (AP Photo/Esteban Felix)
Associated Press
A young man covers his face with his T-shirt while riding a bicycle on a road covered with volcanic ash spewed from the San Cristobal volcano, near Chinandega, Nicaragua, Saturday, Sept. 8, 2012. Nicaragua’s tallest volcano, located about 70 miles (110 kilometers) northwest of Managua, near the Honduran border, has let off a series of explosions, spewing gases and showering ash on nearby towns, prompting an evacuations of residents. (AP Photo/Esteban Felix)
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