Two teachers killed this week: How safe are U.S. schools?
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Two teachers killed this week: How safe are US schools? (+video) (via The Christian Science Monitor)


Philip Chism, 14, stands during his arraignment for the death of Danvers High School teacher Colleen Ritzer in Salem District Court in Boston, Massachusetts October 23. Chism was held without bail on a murder charge. (Patrick Whittemore/Reuters) Residents…