Major airline delays 150 passengers overnight following serious in-flight threat
- United Flight 1681 returned safely to Las Vegas.
- A 25-year-old man was arrested over suspected threats.
- Crew time limits delayed the Newark flight overnight.
A United Airlines flight from Las Vegas to Newark returned to the airport late Saturday after crew reported a potential security concern involving a passenger. The plane landed safely, and the incident matters because it prompted an FAA investigation and led to the arrest of a man suspected…