tyson who is also the director of the hayden planetarium in new york city. he is also the author of several books including his most recent, "astrophysics for people in a hurry." will be live from noon until 3:00 p.m. eastern. c-span, where history unfolds daily. in 1979, c-span was created as a public service by america's cable television companies and is brought to you today by your cable or satellite provider. going forward, we cannot stick with regulations from the great depression that were meant to micromanage mob bell. instead, we need rules that focus on growth and infrastructure development. rules that give americans more online choice after speeds and more innovation. in short, digital opportunity. and we are going to deliver. shared with myi fellow commissioners of proposal to reverse the mistake of title ii and to return to the regulatory framework that served our nation so well during the clinton administration, the bush administration, and the first six years of the obama administration. chairslen: that was fcc ajit pai from earlier this week.

neil degrasse tysonn. ,e is the chief astrophysicist head of the hayden planetarium in new york.april 22 come on this dayay that we also heard thhat the surgeon general has been fired by president trump. we are joined right now by anotherr doctor -- she is a doctor in flint, michigan who blew the polluted water scandal right open with her scientific testing of the water and its effects on the children because of the lead contamination. mona spoke on the main stage. why did you come to washington? >> how could you not be part of the marcrch for science? i am moved by science, i've science.d by theook science to unravel tragedy. we believe in science, we need to invest in science. amy: explain what you did. how you used science to uncover what t took place. >> i w was doing m my job as a pediatrician and researcher when i heard about the possibility of lead in the water. let is a potent committee reversible neurotoxin. it is damaging for children and for generations to come. i put on my research have to see if that lead was getting into the bodies of our children and it was. findin

tyson who is also the director of the hayden planetarium in new york city. he is also the author of several books including his most recent, "astrophysics for people in a hurry." will be live from noon until 3:00 p.m. eastern. c-span, where history unfolds daily. in 1979, c-span was created as a public service by america's cable television companies and is brought to you today by your ca