Growing Delta Threat, Afghanistan Withdrawal, and Haiti Assassination

CNBC's Meg Tirrell updates on the growing threat of the delta Covid variant in the U.S., and Pfizer's plans for a booster shot. Rep Seth Moulton (D-MA) discusses the U.S. withdrawal from Afghanistan and what's at stake for Afghan interpreters. Haitian Times Founder Gary Pierre-Pierre delivers insights about the assassination of Haitian President Jovenel Moise and the manhunt for his assassins. Associated Press Journalist Kristin Hall discusses her investigation into how military firearms are contributing to the nation's rise in gun violence. Plus, an update from rowers who are making their way from New York's Brooklyn Bridge to London's Tower Bridge and raising awareness of the impact plastic pollution has on the oceans.