Ariel Edwards-Levy has a terrific look at what happens when you list the idea and obscure the source: Figuring out what the public really thinks isn't always an exact science, as anyone who's seen two polls touting completely contradictory results can affirm. One reason for that: most Americans, regardless of their political views, don't have a solid opinion about every single issue of the day, particularly when it concerns a complicated or obscure topic.