Howard G. Buffett goes 'where other philanthropists can't'

Howard G. Buffett, son of billionaire investor Warren Buffett, has been face-to-face with dangerous warlords, detained by police in conflict-torn countries and has met with the presidents of African nations to spark social change. This is all for the sake of philanthropy -- a field that took on newfound importance for him when his father announced in 2006 that he was giving the bulk of his fortune to charity ($31 billion to the Bill & Melinda Gates Foundation and the other $6 billion split betwe...