the entire incident is under investigation. in san francisco, rob roth, "ktvu channel 2 news." >>> a national campaign to raise awareness of the dangers of concussions kicked off today. members of the nfl, the oakland raiders and san francisco 49ers presented presented a poster with vital information. >> it is our hope this poster will be hung in every high school in the country, the same way the poster hangs in the nfl locker rooms. >> what could happen to the athlete if not treated and diagnosed problemmerly. most of all, don't try to walk off the injury. >>> the pumpkin-growing world has a new king tonight. a giant pumpkin weighing over 1,000 pounds is the top prize today. the pumpkin is so large a forklift is needed to move it