Five Alaska school districts have each received a suspicious envelope filled with an unknown substance this week.
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Five Alaska School districts receive suspicious envelopes
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Appleton Area school district hosts input sessions on proposed revisions to the district's materials selection policies
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The mystery of schools fires.
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Investigation underway from arrested culprits:
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Ballots are in the mail
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Students learn about drug safety
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Suspicious package destroyed
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Suspicious package investigation leads to arrest
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Possible bottle bomb found in mailbox
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UNCG police investigate suspicious note
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Some midstate School districts see uptick in absences due to flu, other 'bugs'
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B samples of six wrestlers also test positive
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Idaho school districts declare financial emergencies
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Philadelphia School district audited by IRS
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Five arrested after four month undercover drug investigation
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Secret Service intercepts letter to Obama containing 'suspicious substance'
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'Suspicious package' turns out to be harmless