take a second one on a tuesday. and that way, you can be much more certain of the results of the test. >> and let's talk about these new cdc isolation guidelines. the nation's largest nurse's union is saying -- and we -- this is a quote here -- this is about what's good for business, not what's good for public health. the biggest flight attendants' union is saying quote we cannot allow pandemic fatigue to lead to decisions that extend the life of the pandemic or put policies on the backs of workers. do these organizations have a point? >> well, look. i'd like for the -- the five days to at least be amended with, and after the fifth day, thou shall take a test and show a negative test or two before being released. so, as long as you say, look, if you have no symptoms and you test negative, then five days according to most people i talk to feels like it's going to be sufficient. there are people that are infectious after the seventh or