School superintendents do it. So do police and fire fighters, teachers and politicians. Double dipping is legal, but is it right? Public employees often retire only to get rehired in another public sector job. Opponents say they're being paid twice: first a pension, then a salary. Those in favor of it say the workers bring needed experience to the public sector. Double dipping and the tax payer - join Regina Brett for the conversation Friday morning on The Sound of Ideas.