health care shares took atu le. and we'll have more on that in just a moment. and bond yields rose t a near four-year high and that was enough to batter stocks. falling the most since august. the dow jones industrial averag dropped362 points to 26,076. the nasdaq was off 64. s&p 500 was down 31. babb pass any has more on today's selloff from the new york stock he can change. >> the steep selloff continued today on wall street bringing the dow down 4100s after session lows. we haven't seen that for a long time. energy sem i conductors, industrials, key economic benchmarks wdae all down toy. what's going on?er there are s risks to the market right now. call it a stew.ri ng interest rates continue to be a big story. bond yields are hovering aund four-year highs. and with a potentially more aggressivehi federal reserve year, investors are starting to get a little bit nervous. second there is the earngs question. some would argue that the acceleration in earnings growth thatowered the markets higher will slow down the market next year. finally sentiment lels aret th