A flight leaving a Central Wisconsin Airport and headed for Minneapolis had to return to the gate when three passengers started arguing Thursday.  Officials at the Mosinee Airport say two people got into it with a third passenger.  The pair didn’t know the other passenger prior to boarding the flight. It’s not clear what they were arguing about.  The Delta Airlines crew decided the flight couldn’t continue, the three were removed, interviewed and booked on flights for today.  Passengers were delayed for more than an hour at the airport known as “C-Way.”