SALEM, Ore.—A high school in Oregon was placed on lockdown and a juvenile was arrested Friday after police were alerted to a threat on social media, and another youth remained in custody after allegedly threatening to shoot students at a high school in another part of the state. The cases have emerged in the wake of the Feb. 14 high school shooting in Florida in which authorities failed to heed warnings that the 19-year-old alleged shooter was a menace. Law enforcement, school officials and students around the country appear...

Source: Wall Street Journal February 24, 2018 03:08 UTC