congresswoman, zoe lofgren, think you so much. >> thank you so much. >> all right, there's been a lot of news about the only current variant. honestly, it's been very hard to know what to make of. it there's a lot of discussion, it's all preliminary. on the other hand we're getting some new data that seems pretty concerning about evading vaccine protection. there is also encouraging statements from the fire ceo about their boosters efficacy against this specific variant. and i've been trying very hard in the last 24 hours, 48 hours, to push all this data and figure out how we should be thinking what lies in front of us. and we're going to do that together with some really smart guest, next. guest, next.