Linda Thomas-Greenfield, U.S. Ambassador to the U.N., discusses her efforts to bring the world's attention back to Syria. Finn Lau, an exiled Hong Kong pro-democracy activist, and Wu'er Kaixi, a Chinese dissident, talk about the Hong Kong police's attempt to block commemorative gatherings on the anniversary of the Tiananmen Square massacre. Hari Sreenivasan talks to Dr. Ezekiel Emanuel, a bioethicist and oncologist, about vaccine hesitancy and the uphill battle to get 70% of all American adults vaccinated with at least one dose by July 4th.
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