Mark Okoth Obama Ndesandjo, a half-brother of U.S. President Barack Obama, wipes a tear during a news conference on the pre-launch of his first novel "Nairobi to Shenzhen", held by the American Chamber of Commerce in South China, in the southern Chinese city of Guangzhou November 4, 2009. [Agencies]

 
Mark Okoth Obama Ndesandjo, a half-brother of U.S. President Barack Obama, attends a news conference on the pre-launch of his first novel "Nairobi to Shenzhen", held by the American Chamber of Commerce in South China, in the southern Chinese city of Guangzhou November 4, 2009.[Agencies]