The last time you saw Bill Clinton was probably at the Democratic Convention in Charlotte as Barack Obama's most dazzling surrogate. But Clinton has a day job: global philanthropist in chief. As the founder and head of the Clinton Global Initiative (CGI), he has spent the past seven years tackling the world's most intractable problems: HIV/AIDS, climate change and poverty. CGI is a kind of global convener of philanthropists, and the organization estimates that since it began in 2005, it has secured commitments of almost $70 billion for everything from children's health to conflict resolution.
Our cover story this week coincides...