joining me this morning to talk more about that is marsha mcnut, the president of the national academy of welcome.s. thanks for being with us. what the national academy of scie tes? where is located? who founded it? you've got a chance here that we'll talk about open doors to receive people, to get to know more abo what the nas is. talk to me about that. >> well, the national academy of sciences is perhaps one of the best kept secrets in washington. we don't want it to be a secret anymore. that's one reason why we're opening our doors on april 13th for everyone in washington. aig familyay for people to come. we were founded more than 155 years ago by abraham lincolnhe be advisers to the nation. we are a nongovernmental body. >> nonprofit. >> nonprofit that advises the nation on anyatter where evidence can lead to better decisions. we're excited about that day because we want to bring in t famili show them how they can use science in everything from the most important decisionsn their liv to the most mundane. >> think of this as an opportunito to head down one of the smithsonians. this