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Letter Addressed To White House Tested Positive For Deadly Poison Ricin | MSNBC

NBC News’ Garrett Haake reports on a suspicious letter that was addressed to the White House and intercepted by an off-site mail facility that tested positive for the deadly poison ricin.» Subscribe to MSNBC: http://on.msnbc.com/SubscribeTomsnbc

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Letter Addressed To White House Tested Positive For Deadly Poison Ricin | MSNBC

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