Sixty-hour workweeks, low morale and missed paychecks have driven air traffic controllers to their breaking point.

The agency is confronting staffing shortages caused by air traffic controllers, who are being asked to work without pay.

The agency is confronting staffing shortages caused by air traffic controllers, who are being asked to work without pay.

Controllers already have missed one full paycheck and are scheduled to again receive nothing next week as the shutdown drags on.

Sixty-hour workweeks, low morale and missed paychecks have driven air traffic controllers to their breaking point.

Nick Daniels, president of the National Air Traffic Controllers Association, said workers have gone too long without paychecks to work safely.