The 'Ice Bucket Challenge' has become the latest social media sensation, to raise awareness - and money - for ALS, also known as Lou Gehrig's disease. Celebrities and athletes everywhere are taking part, including San Francisco 49ers quarterback Colin Kaepernick, who not only takes a pail of ice water over the head, but flinches not one bit. Something, by the way, that team doctors say maybe one person in 10,000 could do!