Lock down已经解除。
Lockdown At Poway High School Lifted Following Threat
A precautionary lockdown at Poway High School prompted by a bomb threat has been lifted as sheriff's deputies did not find any sign of a possible device on the
campus.
MORE DETAILS: <http://www.10News.com/tu/62o6nAq08.html>
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Poway High School has been placed on a precautionary lockdown after school
officials received a bomb threat.
MORE DETAILS: <http://www.10News.com/tu/62nWKdYvQ.html>
