Polls, polls and more polls

Can we learn anything true from public opinion surveys? Does anyone have coherent opinions about what sort of improvements they want to how we access health care? Does the public really care about a President offering a reward to a foreign country to hurt an electoral opponent?

We're drowning in this sort of semi-scientific survey research. This little video describes how pollsters design their questions. They aren't perfect, but the responsible ones are at least thoughtful about the task.