Homeland is the remarkable memoir of George Obama, President Obama's Kenyan half brother, who found the inspiration to strive for his goal--to better the lives of his own people--in his elder brother's example.

In the spring of 2006, George met his older half brother, then-U.S. senator Barack Obama, for the second time--the first was when he was five. The father they shared was as elusive a figure for George as he had been for Barack; he died when George was six months old. George was raised by his mother and stepfather, a French aid worker, in a well-to-do suburb of...