In a preview clip from this weekend’s Moyers & Company, Bill Moyers talks with What’s the Matter With Kansas? author Thomas Frank about the friendly faces greeting JPMorgan Chase CEO Jamie Dimon when he appeared before the Senate Banking Committee on June 13. Dimon testified about his company’s recent multi-billion dollar losses to the committee, seven members of whom were big recipients of money from the megabank.

Frank describes the revolving door of employment between government and corporate America, especially when it comes to Congressional staffers-turned-lobbyists.

“Staffers know they could drop what they’re doing and go work for a lobby firm and make fantastic money,” Frank tells Moyers. “They want to please these companies — even when they don’t work for those companies – because that’s their future employer and everybody knows it.” Frank’s most recent book is Pity the Billionaire.