barbara low fisher president of the vaccine information center, and from baltimore, maryland, daniel salmon from vaccine safety. dr. salmon let me begin with you. do you think the skepticism that exists about vaccination comes from the rising tide of skepticism of authority that you see in many parts of our lives. religious authority, education, media, the judicial system, there is a lot of doubt in public institutions that used to be pretty unquestionably trusted. is this part of the same thing? >> yeah, i think that's part of what is going on. it's not the fuel picture. it's true that the government strongly supports vaccines and they do so because of the tremendous vicinity tha benefite population. likewise, large corporations and companies that make drugs and vaccines are also not doing as well as they might in terms of public confidence. back when these diseases were prevalent they were also feared. if you look at polio and you speak to my grandparents' generation. they didn't go to movie theaters and swimming pools because they were terrified of polio. the vaccines developed were not