in the 19120s diptheria was one of the most common sill kyler did -- killers of teenagers. in the 20s polio ravaged american children causing tens of thousands of paralysis. measles before the vaccine in 1963 caused 48,000 children to be hospitalized and 500 to di. now we largely don't see those, they are starting to come back a little bit because parents are making these choices because they have forgotten about these disease, not only had we largely eliminated them but we eliminated the memory so people aren't scared. unfortunately they may have to the get scared of them again, which is sad. >> stephen: what if i were to till you sound like you are the-- popular of big pharma. they make the inoculations, they are making money, greasing your palms that is out there now, respond to it. >> yeah, so-- (applause) >> you know, it's amazing to me that we just keep knocking big pharma when in fact you can't on the one hand praise the fact that these vaccines have saved their lives, have allowed our children to live longer, better, healthier lives and then say that just dismiss th