particularly the response i've gotten is not entirely widespread but is happening. at the same time it's something people don't talk about. i'm happy to have had the conversation and talked to people that have experienced this. >> we can add to the list military university cossacks. there's something called the billy graham rule on this very issue. he wouldn't travel alone only in the company of a female. >> i've heard about that as well. that was definitely brought to my attention after this story came out. >> it got a huge reaction is what you're telling us? >> it absolutely did. this is has been probably the biggest story i've ever written. keep sending emails i'd like to hear more. >> sarah mims thank you so much. coming up apple's ceo tim cook did it so did mitch obama. they all gave memorable and inspiring commencement graduation addresses, i wasn't asked to give one. but i'll deliver mine here, next.