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July 1, 2016

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Two women get doused during the ice bucket challenge at Boston's Copley Square, Thursday, Aug. 7, 2014 to raise funds and awareness for ALS. The idea is easy: Take a bucket of ice water, dump it over your head, video it and post it on social media. Then challenge your friends, strangers, even celebrities to do the same within 24 hours or pay up for charity.

AP Photo/Elise Amendola

Two women get doused during the ice bucket challenge at Boston's Copley Square, Thursday, Aug. 7, 2014 to raise funds and awareness for ALS. The idea is easy: Take a bucket of ice water, dump it over your head, video it and post it on social media. Then challenge your friends, strangers, even celebrities to do the same within 24 hours or pay up for charity.