ever-evolving nature in the midst of a really fast-moving pandemic. and we are doing so putting our head down to keep america safe. we will continue to update. we will continue to improve how we communicate to the american public. this is fast-moving science. >> carol, i think the question i have is is the cdc have a messaging problem, or does the cdc and the covid task force and the white house, is it their own communications problem? i mean, i can't figure out what this is. is the cdc not able to put the guidance out that they want because, say, we don't have enough tests, or are they just unable to communicate it very well because the white house isn't giving them any guidance on that? >> i think it's a little bit of both. there is some -- for example, have sympathy for the cdc because of what the director said. this is something that's fast-moving and look, any time that you have a virus like this