sue and edgar wachenheim, iii. dr. p. roy vagelos and diana t. vagelos. the j.p.b. foundation. the anderson family fund. rosalind p. walter. barbara hope zuckerberg. corporate funding is provided by mutual of america--

sue and edgar wachenheim, iii. dr. p. roy vagelos and diana t. vagelos. the j.p.b. foundatio the anderson family fund. rosalind p. walter barbara hope zuckerberg. corporate funding is provided mutual of america-- designing customized individual and group retirement products. that's why we're your retirement company. >> additional support has been provided by: and by the corporation for public broadcasting, and by contributions to your pbs yotation from viewers like you. than from the tisch wnet studios at lincoln center in new york, hari sreenivasan. >> sreenivasan: good evening and thanks for joining us. ida senate today is debating a school safety bill dollowing last month's shooting at marjory stonemalas high school. the bill includes a program to train and arm teachers who opt- in, an idea many gun control advocates oppose. but they are also debating a number of measures opposed by the n.r.a. including an expansion of a three-day waiting period to all guns, a ban on bump stocks and raising the age for buying certain firearms to 21. a vote is scheduled for monday

sue and edgar wachenheim, iii. dr. p. roy vagelos and diana t. s. vage the j.p.b. foundation. the anderson family fund. rosalind p. walter barbara hope zuckerberg. ecorpornding is provided by mutual of america-- designing customized individual and group retirement products. that's why we're your retirement comny. additional support has been provided by: and by the corporation for public broadcasting, and by contributions to your pbs station from viewers like you. thank you. be more. be more. pbs. - would you like to be ntally sharper and prevt memory loss? well, now you can. i'm dr. steven masley, and y- next i'll share an e-follow program with special foods, nutrient and activities that will dramatically improve your brain function, so don't go away. i'll be right back. male annou ier: this programmade possible - in reality, as people age, on occion taking longer to remember a name or a fact is pretty common, but beinbled by memory loss is not normal. eat music] with memory loss, we lose r independence, ev our identity, an worse, we become a burden to the people we love. ♪ no

sue and edgar wachenheim, iii. dr. p. roy vagelos and diana t. vagelos. the j.p.b. foundation. the anderson family fund. rosalind p. walter barbara hope zuckerberg. corporate funding is provided by mutual of america-- designing customized individual ro and group retirementcts. that's why we're your retirement company. >> additional support has been provided by: and by the corporation for byblic broadcasting, a contributions to your pbs station from viewers like you. whank you. from the tist studios at lincoln center in new york, megan thompson.d >> thompson: gening and thank you for joining us. up until now, president trump wd his legal team have said they are cooperatih special counsel robert mueller. but now, the president's lawyer and the president himself are rectly attacking mueller investigation into possible russian interference in the 2016 electi. although president trump has a,ng denied his campaign colluded with ruse's refrained from directly attacking mueller or the investigation. "ut today on twitter, the president said, "e mueller probe should never have been start

sue and edgar wachenheim, iii. dr. p. roy vagelos and diana t. vagelos. the j.p.b. foundation. the anderson family fund. rosalind p. walter. barbara hope zuckerberg. corporate funding is provided by mutual of america-- designing customized individual and group retirement products. that's why we're your retirement company. >> additional support has been provided by: and by the corporation for gpublic broadcastnd by contributions to your pbs station from viewers like you. thank you. from the tch wnet studios at lincoln center in new york, hari sreenivasan.go >> sreenivasan evening and thank you for joining us. a day after hundreds of thousands of people rallied in supporof gun control, the students leading the "march for our lives" movement are hopingt to turn protto action. some of the students from marjory stoneman douglas high school who addressed the crowdse at rallies yesrday took their message to talk shows today. >> this is led by the youth and it is lead for the youth.an if we can encourage these people to take action, to be participating in our society and our politics,

sue and edgar wachenheim, iii. dr. p. roy vagelos and diana t. vagelos. the j.p.b. foundation. the anderson family fund. rosalind p. walter barbara hope zuckerberg. corporate funding is provided by mutual of america-- designing customizividual and group retirement products. that's why we're your retirement company. >> addi support has been provided by: and by the corporation for public broadcaing, and by contributions to your pbs station from viewers like you. thank you. from the tisch wnet studios at lincoln center in new york, rhariivasan. >> sreenivasan: good evening and thank you for joining us. white house official ptoday defendsident trump's proposed tariffs on steel and aluminum along with the decision not to exempt any cos from the tariffs. that's despite criticism from some of america's closest allies national trade council director peter navarro argued the proposed 25%ariff on steel and 10% tariff on aluminum are necessary to defend national securitynd domestic industry. >> the mission is to defend our steel and aluminum industries so they survive, and as our presiden

sue and edgar wachenheim, iii. dr. p. roy vagelos and diana t. vagelos. the j.p.b. foundation. the anrson family fund. rosalind p. walter barbara hope zuckerberg. corporate fuing is provided by mutual of america-- designing customized individual and group retirement products. that's why we're your retirement company. >> additional support has been provided by: and by the corporation for public broadcasting, and by contributions to your pbs station from viewers like you. thank you. from the tisch wnet studios at lincoln center in new york, ri sreenivasan. >> sreenivasan: good evening and thanks for joining us.he acrossountry and overseas today, calls for greater gun control.d students inspi last h nth's mass shooting at marjory stoneman douglas hhool led hundreds of protests. the largest was in washington, d.c. organizers parered with advocacy groups including" anerytown for gun safety," and as hundreds of tho of people gathered in the nation's capital, supporters also rallien ll 50 states, and even across the atlantic. protesters chanted "save our kids" in london, outside the a

sue and edgar wachenheim, iii. dr. p. roy vagelos and diana t. vagelos. the j.p.b. foundation. the anderson family fund. salind p. walter barbara hope zuckerberg. corporate funding is provided omy mutual of america-- designing cued individual and group retirement products. that's why we're your retirement company. >> additional support has been provided by: and by the corporation for public broadcasting, and bio contrib to your pbs station from viewers like you. thank you.is from the wnet studios at lincoln center in new york, hari sreenivasan >> sreenivasan: good evening and thank you for joining us. top trump administration ofecials said today that th will be no concessions to north eerea in the lead-up to a potential historicng between president trump and kim jong-un. c.i.a. director mike pompeo outlined four conditions that north korea would need to accept prior to any meeting with president trump. >> he can't conduct nuclear testing. he's got to stop tg missile testat he has been hard at in the past years. he's got to continue to allow us to perform our militarily necessar

sue and edgar wachenheim, iii. dr. p. roy vagelos and diana t. vagelos. the j.p.b. foundation.he anderson family fund. rosalind p. walter barbara hope zuckerberg.

sue and edgar wachenheim, iii. dr. p. roy vagelos and diana t. vagelos. the j.p.b. foundation. the anderson family fund. rosalind p. walter barbara hope zuckerberg. corporate funding is provided by mutual of america-- designing customized individual and group retirement products. that's why we're your retirement company. >> additional support has been provided by: and by the corporation for public broadcasting, and by contributions to your pbs station y from viewers li. thank you. from the tisch wnet studios at lincoln centein new york, ri sreenivasan. >> sreenivasan: good evening and thank you for joining us. we are learning more the conditions president trump is demanding of north koresiahead of a pe face-to-face meeting with kim jong un. on twitter, president trtp pointed ouhat north korea has not conducted a missile test since last november and saysom they, "ed not to do so through our meetings." so far, north koreastate media has not even mentioned plans for a meeting between the two leaders. also on twitter, the rresident sharctions from other world leaders. after speakin

sue and edgar wachenheim, iii. dr. p. roy vagelos and diana t. vagelos. the j.p.b. foundation. the anderson family fund. salind p. walter barbara hope zuckerberg. corporate funding is provided omy mutual of america-- designing cued indivua