Nope -- didn't have to, as it turned out. And people were better off for it.
At any rate, that's not at all my point. Milloy's article appears to go beyond this one flawed study, to imply that there is no harm from second-hand smoke.
My anecdotal example suggests that it is at least possible that smoke-free buildings are "healthier" than ones where smoking is permitted. I suggested a study that would provide evidence one way or the other -- for all I know, it's even been done by one insurance company or other.
Perhaps Milloy has covered it elsewhere, but I find it rather telling that did not see fit to even consider the question of whether second-hand smoke causes health issues.