The Capitol building is visible as a man who declined to give his name, right, picks up garbage during a partial government shutdown on the National Mall in Washington, Dec. 25, 2018. All the hand-wringing over a potential government default if Congress doesn’t increase the national debt limit has conjured up images of past government shutdowns when TSA agents worked without pay and litter piled up in untended national parks. In fact, there’s a big difference between a government default and a government shutdown. (AP Photo/Andrew Harnik, File)