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U.S. Politics

  • The FBI said on Wednesday that an investigation into mail containing a suspicious substance addressed to a lawmaker and to President Barack Obama has not found a link to the attack in Boston.

    "The investigation into these letters remains ongoing, and more letters may still be received. There is no indication of a connection to the attack in Boston," the FBI said in a statement.

    The envelope addressed to Obama was immediately quarantined by the U.S. Secret Service, the FBI said.

    Filters at a government mail screening facility preliminarily tested positive for ricin on Wednesday morning and mail from that facility was being tested, the FBI said.

    "Only a full analysis performed at an accredited laboratory can determine the presence of a biological agent such as ricin. Those tests are currently being conducted and generally take 24 to 48 hours," the FBI said.

    (Reporting by Tabassum Zakaria; Editing by Vicki Allen)
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Iran nuclear talks stuck, deadline may be extended: officials

VIENNA - A deadline for resolving a 12-year-old dispute over Iran's nuclear program may be extended from Monday until March because of sharp disagreements between Tehran and world powers, officials close to the talks said on Thursday.