Perhaps, you should reread the posts where I use OSHA as an example of how the feds regulate public establishments. I wonder if the tobacco industry's money has anything to do with invaliding certain studies. They have done that before.
Perhaps YOU should reread my post. I asked for ANY GOVERNMENT ENTITY'S regulation. If there is NO entity in the government that has a read on how much ETS is dangerous then what say SHOULD the government have in it? They have facts and figures for everything else they regulate. Why not ETS?
My own suspicion is that they don't have ANY supporting proof that can't be invalidated. It is only the tyranny of the majority, egged on by the anti-smokers, and that's ALL it is.