the airline safety video approach, which is, put your own mask on before helping those around them. however, this week, the biden administration did authorize the release of 60 million doses of the astrazeneca vaccine that's not yet approved for use in the united states. and you know, as more americans get their shots and the domestic demand is less dire, we could see the administration make more of those doses available to partners and allies around the world. >> diaz: love that airline safety analogy. christina ruffini, thank you. there will be more on the pandemic, and politics, of course, tomorrow on "face the nation." among the guests, white house chief of staff ron klain; senator tim scott of south carolina; and former f.d.a. commissioner dr. scott gottlieb. president biden ordered u.s. troops to begin their withdrawal from afghanistan starting today. the taliban marked the day with an attack. cbs's charlie d'agata is in afghanistan tonight. >> reporter: cbs news has learned that today the kandahar