No touching. No human contact. The hidden toll on jail inmates who spend months or years alone in a 7x9 foot cell
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Tamerlan and Dzhokhar Tsarnaev

Boston Marathon bombing suspects Tamerlan Tsarnaev, left, who was killed after the attacks, and his brother Dzhokhar Tsarnaev, who remains hospitalized.
The Lowell Sun & Robin Young / Associated Press
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