a lab where scientists for weeks ntis time get an up close look at how climate change is altering life on the ocean floor. buried alive-- the frantic tarch for survivors after an fvalanche hits a swiss ski resort. and former prisoners change peir lives by taking the stage ind writing their own second act. this is the "cbs evening news" with norah o'donnell. >> garrett: good evening, yoeryone. norah is off tonight. i'm major garrett. we begin with postholiday headaches for millions of travelers, especially those on the road. according to a prediction from da.a., today, the day after holidays, and for many, it'sp aiving up to its billing. a powerful snowstorm shut down two of the nation's busiest interstates today in, of all eftces, southern california. that left cars and trucks stranded for hours. elsewhere, there's been heavyra.