Parents: Teachers 'absolute superheroes'

Mourners gather inside the St. Rose of Lima Roman Catholic Church at a vigil service for victims of the Sandy Hook School shooting December 14, 2012 in Newtown, Connecticut.
Mourners gather inside the St. Rose of Lima Roman Catholic Church at a vigil service for victims of the Sandy Hook School shooting December 14, 2012 in Newtown, Connecticut.

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    Parents: Teachers 'absolute superheroes'

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Parents whose children survived the Sandy Hook shooting tell CNN's Soledad O'Brien how teachers protected their kids.