attendant had two teeth knocked out by a passenger, according to their union. >> they seemed to be almost angry before they step onboard the aircraft and they are verbally attacking flight attendants, calling them names, pulling on their lanyards, getting aggressive. we had to deal with vital life incidents. >> reporter: even if you're fully vaccinated, masks are still required on all forms of public transportation and terminals by the tsa. the federal aviation administration received 2,500 reports of unruly passengers just this year, 1,900 about mask compliance. >> starting to mask agonize other passengers. >> reporter: a crew member on this jetblue flight said an unruly passenger cut this coast-to-coast trip short, forcing it to land.