Africa: AIDS relief and the world's richest people

In the 2007 list of the World's Richest People, 946 named billionaires had a combined wealth of approximately $3.5 trillion. The collective net worth of the richest Americans in 2007 is $1.54 trillion. Each of these men and women, says Chinua Akukwe, has enough resources to make a major difference in the fight against the global epidemic of H.I.V./AIDS.