barbara hope zuckerberg.rles rosenblu we try to live in the moment, to notiss what's right in front of us. at mutual of america, we believe taking care of tomorrow can help you make e most of today. mutual of america financial igroup, rent services and investments. additional support has bee provided by: >> consumer cellular. and by and by the corporation for public broadcasting, a private ncorporation by the american people. and by contributions to your station fromiewers lik you. thank you. >> sreenivasan: good evening, and th it is the fourth of july-- independence day-- 244 years after the signing of the declaratn of independence. instd of parades and prinics, many ans are staying home, as a precaution during the coronavirus pandemic. others are protestinagainst racial inequality and police brutality. ♪ ♪ despite warnings not to gather in large groups, and to wear chface masks, the presidene to have a rally and fireworks display at mount rushmore in south dakota last night. mr. trump used his speech at th

barbara hope zuckerberg. charles rosenblum. we try to live in the moment, to not miss what's right in front of us. at mutual of america, we beweve taking care of tomor can help you make the most of today. mutual of erica financial group, retirement services and vestments. >> for 25 years, consumer cellular has been offeri-c tract wireless plans, designed to help people do more of what they like. our u.s.-based customer servic team can help find a plan that fits you. to learn more, visit www.consumercellular.tv. additionalupport has been provid by: and by: the corporation for public broadcasting, a private corporatn funded by the american people. and by contributions tyour pbs station from viewers like you. thank you. >> sreenivasan: good evening and thanks for joining us. as new coronavirus cases continue to increase in dozens of stes this weekend, opening decisions are being reversed and in some parts of the country officials are urging people to stay at home again. there were more than 60,000 new confird cases yesterday accor

barbara hope zuckerberg. charles rosenblum.we try to live in the moment, to not miss what's right in front of us.

barbara hope zuckerberg. charles rosenblum. we try to live in the moment, to not miss what's right in front of us. at mutual of america, we believe taking care of tomorrow can help you make the most of today. mutual of america financial group, retirement services and vestments. additional support has been provided by: consumer cellular. and by: and by the corporation for vapublic broadcasting, a p corporation funded by the american people. urand contributions to pbs station from viewers like you. thank you. >> sreenivasan: good evening, and thanks for joining us. john lewis, one of theeadersof he civil rights movement and a member of congress for more than 33 years, died yesterday of pancreatic cancer. he was 80 years old. lewis was diagnosed with sge- four canr last december but continued to work, to vote in the house of representatives and to speak out as the black lives matter movement and protests began this spring. in early june, lewis visited the newly-named black lives matter plaza in washington, d.c. >> people in d.c. a

barbara hope zuckerberg. charles rosenblum. we t to live in the moment, to not miss what's right in front of us. at mutual of america, we believe taking care of tomorrow help you make the most o today. mutual of america financial group, retirement services and investments. additional support has been provided by: consumer cellular. and by: and by the corporation for public broadcasting, a private corporatiofunded by the american people. and by contributions to your pbs station from viewers like you. thank you. you're watching pbs. henry louis gates jr: john lewis has crossed over the final bridge. the rist of the big six civilt. if courage had a name, it was his. he leaves us at a time when the stakes of all for which he struggled couldn't be higher. for john lewis, voting was sacramental. he shed his blood for us to exercise this most fundamental of rights. forevermore, generations, hestarting with thisne,s to wi honor him by casting their ballots.la a secommunion meant to strengthen our democracy. his roar as the conscience o

barbara hope zuckerberg. charles rosenblum. we try to live in the moment, to not miss what's right in front of us. at mutual of america, we believe taking care of tomorrow can help you make the most of today. mutual of america financial group, retirement services and investments. and by: and by the corporation for public broadcasting, a private corporatnded by the american people. and by contributions to your pbs station from viewers like you. thank you. >> sreenivasan: good evening and thank you for joining us. president trump commuted thece0- month sentf longtime friend and former campaign adviser roger stone last night-- just days before stone was to report to prison. stone was found guilty of seven ctlonies last november, including obstrun of justice, lying to congressional investigators and witness tampering in special counsel robert mueller's probe of russian interferce ithe 2016 presidential election. prosecutors originally recommended a seven to nine year seeence for stone before th president criticized the recommendati

barbara hope zuckerberg.

barbara hope zuckerberg. charles rosenblu we try to live in the moment, to not miss what's right in front ofs. at mutual of america, we believe taking care of tomorrow can help you make the most of today. mutual of america financial group, retirement services and investments. additional support has been provided by: consumer cellular. and by: and by the corporation f public broadcasting, a private corporation funded by thee. american peo utions to your pbs station from viewers like you. thank you. you're watching pbs. maria shriver: perhaps the greatest mystery... is the human brain. in only the past few decades, scientists have made incredible leaps in our understanding. and we are just now raveling the secret of how the brain can change throughout our lives, leading to incredible transformation. merzenich: we have this new understanding that the person that is within us is actually a product of change that occurs within our lifetime. this is new science. it's one of the greadiscov, because it has the potent