dr. mona hanna-attisha addressing the crorowd. i saidid down with dr. na and began by asking her why she came to washington for the march. >> how could i not come to washington? how could you not be a part o of the march for science? in my everyday is a pediatrician, i am moved by science. i am guided by science and by the care of patients. the flint store is a story of science. it is a science to unravel thiss unbelievable tragedy. we need to believe in science. we need to invest in science. if not, we have the risk of seeing many more flints to come. amy: explain how you used a science to ever cover -- uncover what took place. >> ousted in my job as a pediatrician and as a researcher. what i heard about the possibility of lead in thehe wateter, i stoppeded sleeping. lead is damming for children and for generations to come. when i heard there was light on the water, i put on my research have to see if that was getting into the bodies of our children. and it was. instead of waiting to publicly find interview journals, we announce the findings becaususe o