who watched his entire town burn to the ground. he's now facing the danger of yet another fire. >> we are much better prepared. the new u.s. capitol police chief sitting down with cnn on his first day on the job, sharing whether he's concerned about another capitol attack. and better late than never. after a year long delay, the tokyo olympics officially under way. we're live from the games. "newsroom" starts now. good morning. thanks so much for joining us this saturday, july 24th. i'm boris sanchez. >> i'm kaitlin collins in for christi paul. this morning, communities across the country are bringing back pandemic safety measures as the u.s. deals with a dangerous summer surge of covid-19. case rates are climbing, fueled by the spread of the delta variant which is highly co