this is the big question here, but legal experts, health experts we talked to say that full approval will at least give these organizations, companies, schools, the legal cover they need to mandate the vaccine, thus forcing some unvaccinated americans to get that shot. ladies and gentlemen, welcome to flight 1754. reporter: from businesses who say it could speed things up we re going to require everyone to be vaccinated if they work at united airlines. october 25th or 45 days after the fda has final authorization for the vaccine. reporter: to government. will vaccinations be required of state employees? you know, that s not under consideration unless and until the fda grants full license to one or more of the vaccines. reporter: to everyday americans? this fda approval cannot come a moment too soon. with this full approval will have the chance to message about