Social Issues

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People wait outside a Veterans Affairs hospital after they were evacuated, Monday, May 5, 2014, in Dayton, Ohio. A city official says a suspect is in police custody after a shooting at the Veterans Affairs hospital that left one person with a minor injury. (AP Photo/Al Behrman)

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People watch police officials as they wait outside a Veterans Affairs hospital after they were evacuated, Monday, May 5, 2014, in Dayton, Ohio. A city official says a suspect is in police custody after a shooting at the Veterans Affairs hospital that left one person with a minor injury. (AP Photo/Al Behrman)

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People wait outside a Veterans Affairs hospital after they were evacuated, Monday, May 5, 2014, in Dayton, Ohio. A city official says a suspect is in police custody after a shooting at the Veterans Affairs hospital in Ohio that left one person with a minor injury. (AP Photo/Al Behrman)

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People wait outside a Veterans Affairs hospital after they were evacuated, Monday, May 5, 2014, in Dayton, Ohio. A city official says a suspect is in police custody after a shooting at the Veterans Affairs hospital that left one person with a minor injury. (AP Photo/Al Behrman)

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People stand outside a Veterans Affairs hospital after they were evacuated, Monday, May 5, 2014, in Dayton, Ohio. A city official says a suspect is in police custody after a shooting at the Veterans Affairs hospital in Ohio that left one person with a minor injury. (AP Photo/Al Behrman)

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Pakistani girl Amina shows her thumb being marked after receiving polio vaccine in Lahore, Pakistan, Monday, May 5, 2014. For the first time ever, the World Health Organization on Monday declared the spread of polio an international public health emergency that could grow in the next few months and unravel the nearly three-decade effort to eradicate the crippling disease. (AP Photo/K.M. Chaudary)

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A Pakistani health worker gives a child a polio vaccine in Lahore, Pakistan, Monday, May 5, 2014. For the first time, the World Health Organization on Monday declared the spread of polio an international public health emergency that could grow in the next few months and unravel the nearly three-decade effort to eradicate the crippling disease. (AP Photo/K.M. Chaudary)