Third Dose, Or Booster?

The CDC advisory committee opens a major new chapter in the nation's COVID vaccination campaign with endorsement of a third Pfizer dose, or boost, but not for everyone. A Florida Democrat representing one of the nation's largest Haitian-American communities issues an ultimatum to the White House and says she's "pissed" about the border crisis. K-pop superstars BTS take the United Nations General Assembly by storm and sit down with ABC's Juju Chang.