change its guidelines for quarantining from ten days down to five days provided you re asymptomatic. that is something that the airlines ceos from jetblue to delta have been lobbying the cdc to do for days now and they have. there is some push back, however, from the flight attendants association, the people who are working the most closely with passengers in the cabinet. they re wonder that ten days down to five might work for some people, but for others, they could be exposing passengers unnecessarily to the virus. this remains a point of contention. as dr. anthony fauci said, this is threading a needle between the science of omicron and the fact that you have depleted staffs for airlines, at hospitals, at transportation systems, and this appears to be the middle ground for now. sam, thank you. doctor bell, sam mentioned the updated cdc guidelines there. you have raised questions about a lack of a negative test requirement, particularly for those who are unvaccinated. is there sc