offit: absolutely.is in perspective, there is something called the contagiousness index, how many people would you infect assuming you are infected and everybody is susceptible for diseases like covid and influenza -- susceptible. produces like covid and influenza it's three, measles is 18. william: i don't want to date you, but i know you had measles as a child before the vaccine. for people who don't remember, in your mind is how serious of a virus or what talk about? dr. offit: before there was a measles vaccine in 1963, every year in the country there would be three to four cases of measles and 3000 to 4000 people hospitalized and 500 people died, mostly children. they died from severe dehydration, severe pneumonia, or inflammation of the brain. it is a terrible disease and i think what we are suffering right now is not just because we are seeing measles in the manner of before, we don't remember measles. we don't room or how sick the virus can make you. william: one of the things we've also seen is

and infrastructure agency which is charged with aeasiesing election officials and -- assisting rex offite sector partners to mitigate risk and enhance the election facilities and equipment. and maybe just turn it to -- >> yeah. of thank you. these efforts are critical, director wray. it is essential that americans have confidence these issues are identified without the fbi or to anybody else stepping on their constitutional rights. so how can -- give us 90 seconds of why we should be confident that you can do that. >> so our focus not on the content, our focus is on the actor, the foreign actor. and that's a key distinction tings. we're not the arbiter we to be the arbiter the of what's truth or fake. what we are doing is trying to identify the hidden hand of foreign adversaries foreign intention services, belong to some is foreign adversary and and alerting the right people to that. that's the primarygn malign influence space. there is a second category that is important in an election year which is lies about where and when to vote, for example is a form of voter suppression and that's