During his recent speech before a joint session of Congress on his health care plan, President Barack Obama said "If you misrepresent what's in the plan, we will call you out." The legislators addressing the public where falsehoods are mindlessly repeated need to do just that.
Proponents need to create and distribute a list of the original sources of common misinformation for officials to cite by memory, so they can name the specific source to say, "what so-and-so told you isn't true."
That would hold the individual liars accountable as Obama implied would be done.
