san francisco has one of the largest densities of bars per capita, 3,000 bars in a city of less than a million people. you have really no better person to ask about human behavior, decisions we make, than a bartender. we spoke to the head of the new alliance that has sprung up in which 300 bar owners have come together and said you have to have a vaccine card or a negative test result to show us at the door in order to drink inside. listen to what he had to say about why they took this action. >> what really stood out from conversations is how much frustration and anger there was in the group with numb nuts not getting vaccines by choice. in the face of incredible amount of data, in the face of every scientific professional not deep in the realm of youtube, all of the recommendations are to get a vaccine.