Comparing: 20 Years After Columbine, Schools Have Gotten Safer. But Fears Have Only Grown.

http://www.nytimes.com/2019/04/20/us/columbine-anniversary-school-violence-statistics.html

• Pink: Archived April 20, 2019 at 3:16am EDT
• Green: Archived April 20, 2019 at 10:23am EDT

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