When we met Rep. Francis Underwood (Kevin Spacey), D-S.C., in the first season of House of Cards, he introduced us to his favorite getaway in Washington, DC, a hole-in-the-wall barbecue joint that opens early just for him. In the first episode of season 2, he’s back there, tucking into another rack of ribs, but something tastes different. The pitmaster explains: he went to a new butcher, who slow-bleeds his hogs. The practice, as he describes it, is cruel and disturbing and possibly illegal. He is not sure he wants to go back to his supplier.