Air traffic controllers are missing another paycheck due to the ongoing government shutdown, raising concerns about financial stress affecting their work. A number of isolated flight delays have been reported since the shutdown began as more controllers call out sick. The Federal Aviation Administration was already short on staff before the shutdown. Transportation Secretary Sean Duffy and the National Air Traffic Controllers Association President Nick Daniels emphasize the pressure on controllers. Some are taking second jobs to make ends meet. The shutdown is also hindering efforts to reduce the shortage of controllers. Though pressure is mounting on Congress, Democrats and Republicans have shown little sign of being able to reach a deal to fund the government.