The question isn't IF lines should be drawn, it's WHERE

WSJ.com - A Question of Belief:

"'What is an article of faith for me is not something that I can legislate on somebody who doesn't share that article of faith,' he declared on Wednesday night. And so he argued that the choice of an abortion 'is between a woman, God, and her doctor.' He didn't stop there, however, adding that faith 'affects everything that I do, in truth....And I think that everything you do in public life has to be guided by your faith, affected by your faith, but without transferring it in any official way to other people.'

Here Mr. Kerry was trying to draw a line between areas in which his religion is an acceptable influence and others where it is not. Fighting poverty, protecting the environment, promoting equality -- these are mandated by a faith that requires good works, he suggested. Why this same teaching doesn't require him to oppose abortion and the killing of embryos for medical research Mr. Kerry didn't say. And Mr. Schieffer didn't ask."