forget goosebumps. it's all for a good cause. more than 1,000 people turned out along the shore of lake erie. they took part in the annual polar plunge which has become a holiday fundraising tradition for special olympics in buffalo. it's our cnn affiliate there reports $150,000 was raised for a fantastic charity, by the way. the water temperature, a nice 44 degrees. hey, it was warmer in the water than outside. when you change something that affects 500 million people, that's a talker. facebook's tweaking your profile page and you should see that change today. of course, when facebook tweaks a network that holds personal info you wonder if your secrets will be safe. leslie stall asked mark zuckerberg all about that privacy issue. this is from "60 minutes" last