hard sell. we did not tell parents to wear masks around their kids before vaccinations. i think this is very hard in the home. i think the recent guidance on wearing masks is important because you can then come home and hopefully not need to wear a mask because you protected yourself when you're out and about. i understand why he said it, but just from a practical standpoint hard to sell that one. >> it's going to be really hard. also it's regional. it depends on if you live in a place with high transmission. i don't think that you can give that blanket -- i guess they are giving that blanket statement. but you make a point it will be a hard sell. >> all right, dr. sanjay gupta, thanks so much. president biden is set to speak momentarily. and our coverage continues on "the lead" after this short break. subway® has so much new, it didn't fit into their last ad. so we gonna have to speed it up to tell you about their new belgioioso® fresh mozzarella, made by artisan cheesemakers.