Where there is secondhand smoke ... there's disagreement.
A Gallup poll out this morning suggests Americans' stance on the dangers of secondhand smoke depend somewhat on whether they have children.
Significantly less than half of those polled who have children, 44 percent, believe exposure to secondhand smoke is harmful to adults. That drops to 29 percent among adults with no minor children but goes up to 61 percent for nonsmokers with no children.
Among nonsmokers, Gallup found, there is little difference of opinion between those with children and those who have none.
Read more about the study of data from Gallup's annual updates on smoking and tobacco gather from 2010 through 2014 here.