MSNBC All In With Chris Hayes November 19, 2021 08:37:00
According to a new british medical journal. it does seem like in indoor settings, booster shots are two things where the picture has gotten clear and clear. and it is pretty crystal clear now. >> exactly, chris and i'm so glad that you have put it that. way and anybody who start saying, you shouldn't be wearing a mask because we don't know if mask work, that has been put to bed. mask work. period. and there are many studies that now show that, just like the recent study, that has come out from the british study, just literally today. >> final question, for you is on this health attribute quest...