Just to point out the fact that over a period of many years, there were peer-reviewed papers produced that supported the idea that smoking tobacco was not at all hazardous to anyone's health, however, it has come to light that these papers were funded by the tobacco lobby and therefore tainted. There are all sorts of papers published by what should be totally respected journals, but we have to look closely at any possible conflict of interest in these things because it is most certainly possible, its been shown to have happened in the past and will continue to be a factor. people insist that their "peer-reviewed" papers on any and all aspects of 9/11 are somehow perfect and above reproach. I for one am skeptical.