New York City officials have disclosed documents suggesting lingering air quality issues stemming from the aftermath of the September 11 attacks, prompting fresh scrutiny over long-term environmental impacts. Meanwhile, authorities in Miami are investigating a plane crash that killed five individuals who were traveling in a van used by airport cleaning crews. Separately, widespread flight disruptions have grounded over 600 flights across the UK after a technical failure in the country’s air traffic control system.
Tuesday on the News hour, New York City officials released documents that raise new concerns about air quality following the Sept. 11 attacks, authorities in Miami say all five people killed by a plane crash this weekend were in a van used for cleaning crews that service planes and more than 600 flights were cancelled in the UK due to a problem with the country's air traffic control system.
