Faced with fresh flight safety problems at a major US airport, the Trump administration is set Thursday to unveil a modernized air traffic control system.

US Transportation Secretary Sean Duffy is planning a news conference in Washington to announce an upgrade billed as a dramatic break from the "band-aid" fixes of past administrations.

A massive overhaul of the US air traffic control system could cost tens of billions of dollars.

Such a policy would need to win congressional approval at a time when Trump's administration is also seeking deep spending cuts to finance tax cuts.

The union for air traffic controllers has complained of obsolete buildings containing radar technology that........

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