police say speed may have been a factor in last week's crash. number four, take a look at this, well, you can't see much because it's in shanghai china. it's wreathed in smoke. the government's air pollution monitor said the smog has reached the highest ever recorded there. it's hazardous to health and authorities have told them to keep children inside. up now, number five, imagine finding this waiting for you. it's a sinkhole swallowed a car in california. and police believe a sewer issue is to blame there. still steaming there. breaking overnight a korean war veteran is due in san francisco in just a few hours now from that. north korea freed 85-year-old merrill are newman friday night after detaining him for more than a month. cnn international correspondent ivan watson is in beijing. ivan, good morning to you.