Climate activist Greta Thunberg said today that the COP26 climate summit is a failure, lambasting the U.N.-brokered talks for turning into a public relations exercise. Pfizer announced today its easy-to-administer Covid-19 pill, used in combination with a widely used HIV drug, cut the risk of hospitalization or death by 89% in high-risk adults who’ve been exposed to the virus. CNBC’s Ylan Mui reports on the progress of the infrastructure bill and the Build Back Better Act ahead of Congress’s recess, which begins tonight. CNBC’s Perry Russom reports on Boston’s Methadone Mile, where addicts live in tents on the streets of the city. The city is trying to come up with a solution. NBC’s Jay Gray reports on the trial of three men accused of murdering Ahmaud Arbery. CNBC’s Rahel Solomon reports on the U.S. lifting its travel ban for vaccinated international travelers, starting Monday, November 8. Plus, CNBC’s MacKenzie Sigalos discusses New York’s Mayor-elect, who said he’d take his first three paychecks in bitcoin.