effect at 12:01:00 a.m. on december 31st. we should point out, in the interim, the administration has stepped up the travel requirements across the board, including that one day before you come test requirement. the white house emphasizing that restriction will apply to people from the eight countries who are now going to be able to come into the united states but still have to get the test one within day of coming to the u.s. >> okay. so, look, doctor, i want to go back to the whole idea of asymptomatic cases or the lack thereof. so, again, recognizing that in a big swath of this country, it is difficult, if not impossible to get a test. even if you get it, unless it's an instant test, very difficult to get results in a timely maempb. if you find out you've been exposed to someone who tested positive but you have no symptoms, can you feel okay about not getting tested? >> well, i would think that, first, you ought to quarantine yourself if you have been