You might have to be Diane Sawyer to merit an international (and slightly off-tune) flash mob, but the public displays have become common in the last few years. Holiday flash mobs have shut down malls and lifted tired travelers' spirits as of late. Activists also organize to sing, dance, and draw attention to causes near and dear to them. Check out these five purposeful gatherings that focused on maternal and children's issues.
5 Flash Mobs For Family-Friendly Causes
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