For those who are going to watch the olympics, watch the bob sledding & luge events - they've had 18 people get hurt 3 seriously in practice. They've made changes 3 times in the last two weeks to the course because the speeds are outrageously fast. A girl hit the top rail (roof) on one of the lower turns in luge practice run and had to be air lifted out. It was ugly & gruesome.
(for those with satelite I'll try to find you direct channel feed station)