but still flying more flights than competitors as everyone ramps up to handle the passenger surge. meanwhile, with an unprecedented increase in unruly, disruptive even violent behavior on board often over the mask mandate, the nations airlines are asking the justice department to fully prosecute anyone that behaves violently toward flight crews or passengers, pushing for fines and jail time tom costello, nbc news, washington >> reporter: this is kerry sanders at port miami. where for 15 months there have been no passengers but on sunday, a cruise ship with volunteer passengers finally set sail freedom of the seas now putting royal caribbean's new covid health and safety protocols to the test. the two-day cruise around the bahamas with employees as passengers everyone vaccinated. proof of performance trip required by the centers for disease control.