ben gupta, pulmonologist, pandemic consultant, and nbc news medical contributor. thank you very much for joining us. as vaughn was saying, people in these areas are not wearing masks. what would be the message that needs to be sent in order to make it so hospitals are not overwhelmed, if states are going to continue to reopen, and people are going to leave their house, despite the recommendations of health officials. >> you know, katie, i feel like we spent so much time talking about encouraging or recommending masks and social distancing. vaughn said none of that is happening. so what point do we say it is mandatory, and if you don't do it, we have enforcement mechanism, like you can stop people smoking in a bar or restaurant. you're going to get kicked out if you don't wear a mask. we're at that point. we're left with no other options here because obviously people are protesting. we know from data from germany that carnival goers recently, that went to a carnival saw a 2.5 times increase in transmission of covid-19. and that's despite best practices. so we have