An Israeli clinical psychologist and former Israeli special forces member named Yotam Dagan worried about how the students at Marjory Stoneman Douglas High School in Parkland, Florida, are going to react the next time the school holds a fire drill. Remembering that the shooter who slaughtered 17 innocent people is said to have pulled the fire alarm to empty the classrooms, Dagan said, "If it's just done without any early preparation or warning, the sound of the bell is going to reactivate the traumatic response." Helping avoid those triggers is why Dagan and another psychologist recently flew from Tel Aviv to Miami to meet with teachers, counselors, first responders, clergy and others to offer practical lessons learned from Israel's vast experience with terrorism and war.

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