Air traffic controllers warn of 'tipping point' as U.S. government shutdown drags on - NPR
- Air traffic controllers warn of 'tipping point' as U.S. government shutdown drags on NPR
- Department of Transportation might be forced to shut down some airspace next week: Duffy abcnews.go.com
- ‘We won’t let people travel’: Officials warn as SFO delays pile up and national air travel crisis deepens San Francisco Chronicle
- Flight delays pile up as government shutdown enters second month NBC News
- Trump administration warns shutdown could force US airspace closures The Guardian