truman and hoover became friends during their post-presidency because they detested eisenhower for his refusal -- refusal to stand up to josephccarthy and the disastrous bay of pigs invasion in 1961, kennedy had invited the white eisenhower to camp david to talk about how it went wrong. it was a fascinating look at the relationship and discussions that taken place over the years between sitting presidents and their predecessors and the role of former president today is the subject of the "time magazine" cover story. about two weeks ago, we covered jon stored in a conversation with bill clinton, part of the clinton global initiative and this is part of that program. "road to the white house" [video clip]journ >> what to to learn this weekend? >> we had many non-american students. the students can all the way from where they are in school. i learned all over again that all these young people, partly because of the social media and internet communications generally, have a much more global perspective on a person to person basis than any generation before. the second thing i learned is there every year, their commitments are get