the reason it's a concern, some of the mutations that have been found in that variant suggest that it could be more resistant to immunity and vaccines. so that's why the world health organization has labeled it a variant of interest. the cdc hasn't yet done that. there is still, i think, a widespread suggestion that this variant is still susceptible to treatment with our vaccines. >> we'll keep an eye on it. thank you so much, dr. reiner. >> my pleasure. >> especially on a holiday morning. thanks again. next, millions of americans are set to lose their pandemic unemployment benefits today. what does it mean for them and the economic recovery? we'll talk about it. plus, congressman michael mccaul, the top republican on the foreign affairs committee says the taliban are blocking plane loads of americans from leaving afghanistan.