Air traffic control and Transportation Safety Administration (TSA) workers are considered “essential”, so they will continue to go to work in the event of a shutdown. During the last shutdown in 2018-2019, these workers increasingly began to call in sick, leading to airport delays. During the last shutdown, the Trump administration made the decision to leave parks open, with few to no federal workers there to staff them. Visit to the zooWashington DC’s famous Smithsonian Institution museums will stay open until at least next Monday, 6 October. On the Smithsonian website, the organisation said it had money available from years prior to help it stay open.