Just like in the 60's and 70's when the big tabacco companies claimed cigarrettes didnt cause cancer, is this the same situation with oil campanies? In the 60's and 70's they brought out all types of studies showing cigarrettes didnt cause cancer and in fact they were healthy for you. In fact they brought out scientists and doctors to debunk all the claims about cigarrettes causing cancer. The facts are, the tabbacco companies did try to coverup the fact that smoking caused cancer. Doesnt this parrarel the situation with Oil companies. And if it turns out 15-20 years from now, that indeed there is global warming, and some whistle blower shows evidence the oil companies did try to cover up the facts. what are the legal liabilites if any? And remember back in the early 70's when all of the companies claimed the ozone layer depletion was a hoax. Till scientific evidence proved that there was a hole.