(Salem, OR) -- The Salem-Keizer School District will add weapon detectors at its 12 middle schools this school year. They've seen an increase in younger students bringing weapons to school. Last year, Salem-Keizer became the first school district in Oregon to add weapon detection at high schools. The weapons detectors will cost one-point-two million dollars with the money coming from a school bond and a settlement with the e-cigarette maker Juul.