It’s no surprise that social-media campaigns can raise awareness of an issue, but the ALS Ice Bucket Challenge may be unprecedented in its impact on a relatively rare disease. The campaign, in which participants must donate to an ALS cause or take videos of themselves being doused in ice, has gone viral since it began in late June. But it has also generated controversy, with some questioning the attention and flood of cash for a disease that affects a small number of people.
Image: Challenge accepted: Pete Frates, who suffers from ALS, and who helped popularize the ice bucket challenge, gets doused at Fenway in Boston.
