Meghan Stephenson hugs her child before staying goodbye Feb. 22, 2018, outside Orono Schumann Elementary School as a police officer stands nearby as students arrive for the day after a threat was posted, causing Orono, Minn., schools to go on lockdown. The Feb. 14 killings of 17 people in Parkland, Fla., ignited the usual copycat threats and heightened school leaders’ responses. (David Joles/Star Tribune via AP)

Meghan Stephenson hugs her child before staying goodbye Feb. 22, 2018, outside Orono Schumann Elementary School as a police officer stands nearby as students arrive for the day after a threat was posted, causing Orono, Minn., schools to go on lockdown. The Feb. 14 killings of 17 people in Parkland, Fla., ignited the usual copycat threats and heightened school leaders’ responses. (David Joles/Star Tribune via AP)

After Parkland, even idle school threats get tough response

The Feb. 14 killings of 17 people in Parkland, Florida, ignited a wave of copycat threats.

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