Is second-hand smoke dangerous?
Secondhand smoke contains a number of proven cancer-causing agents. Human evidence on its hazards may be somewhat inconsistent, but this does not mean there is no evidence of its dangers. Rather, these inconsistencies reflect the inherent limits of the discipline. It took more than fifty years for the world’s scientists to reach an agreement on the dangers of smoking, and there are still serious scientific disagreements about the scale and scope of the problem. Those disagreements are inherent in science, and should not be misconstrued to mean there is no problem. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Q. I have heard there is a link between drinking milk and breast cancer. Is that true? Whether or not milk increases some illnesses, including breast cancer, is something that should be more carefully studied. It would not surprise many of my colleagues to learn that milk is not an essential food for human
