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First Word: Threatening letter mailed to Obama

The United States Secret Service confirmed Thursday a threatening letter, possibly containing the deadly poison ricin, was mailed to President Obama.

President Barack Obama during a press conference in the White House Briefing Room on April 30, 2013. (File photo by Chip Somodevilla/Getty Images)
President Barack Obama during a press conference in the White House Briefing Room on April 30, 2013.Getty Images

Sarah Muller