When a cell-phone clip of four teenagers bullying Karen Klein aboard a school bus went viral, it became the purest example of how the Internet can rally for what’s right. Reddit users created a fund to send the 68-year-old bus monitor on a vacation. They intended to raise $5,000, but the video of the cruelty Klein experienced while chaperoning the teens for Greece school district in upstate New York was so infuriating that donations poured in, eventually totaling more than $700,000. The school district disciplined the kids involved, removing them from the school, and Klein, a grandmother, has since started a foundation to combat bullying.
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