U.S. vaccine chief Moncef Slaoui says "we need to improve" pace of administering shots

Moncef Slaoui, the chief science adviser for Operation Warp Speed, says the federal government is "standing by" and ready to help states speed up administering the vaccine.

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"Face the Nation" is America's premier Sunday morning public affairs program. The broadcast is one of the longest-running news programs in the history of television, having debuted November 7, 1954 on CBS. Every Sunday, "Face the Nation" moderator and CBS News senior foreign affairs correspondent Margaret Brennan welcomes leaders, newsmakers, and experts to a lively round table discussion of current events and the latest news.