Tweets about Postal Service, Screens, Letters, Addresses

DeVaughn was sentenced to six years in federal prison for the incidents, which, although no one was harmed, raised the obvious specter of another anthrax attack. A decade ago, anthrax spores delivered in letters killed five people, injured 17 and changed how the U.S. Postal Service and other institutions think about mail safety.

From 2011: How the U.S. Postal Service screens letters sent to federal addresses

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