Payola scandals -- Moyers, Nader and Jackson

Glenn Reynolds and others in the blogosphere have been posting regularly on the "payola" scandals where certain people have failed to disclose compensation when they take advocacy roles on issues affecting the public. (see e.g. Armstrong Williams and Kos) Maggie Gallagher is now coming under scrutiny.

If we are going to focus on the financial arrangements of those advocates who attempt to manipulate public attitudes, why don't we start with Bill Moyers, Ralph Nader and Jesse Jackson. These three have made careers of making themselves quite wealthy on cash from government and charities while serving as advocates for all kind of public policies.

Don't the people deserve to know just how much wealth they have raked in from public and charitable sources?