In part one of a two-part series, Fault Lines goes to Mogadishu to see the impact of Somalia's famine, and asks if US policies have contributed to the disaster.

Join a team of adventurers and scientists deep in the heart of the African Congo who are searching for an elusive man-sized predator that locals believe to be a cursed relative of the piranha, but may hold the key to evolutionary science.

Read more: channel.nationalgeographic.com/series/explorer/3826/Overview#ixzz1NDAopJKW

In January 2009 it was a patch of lawless Afghan desert, riddled with Taliban fighters. Today, Camp Leatherneck is home to more than 10,000 troops. Go inside the epicenter of the war in Afghanistan and meet the men and women who work in and pass through the camp. Learn what daily life is like for the people who find themselves in this place. How violence, boredom, excessive heat, separation from family and cultural differences affect the mind-set of the warriors.

Read more: channel.nationalgeographic.com/series/explorer/4832/Overview#ixzz1NCgDB7iV

Obesity in America has reached a crisis point. Two out of every three Americans are overweight, one out of every three is obese. One in three are expected to have diabetes by 2050.

Minorities have been even more profoundly affected. African-Americans have a 50 per cent higher prevalence of obesity and Hispanics 25 per cent higher when compared with whites.

How did the situation get so out of hand?

On this week's episode of Fault Lines, Josh Rushing explores the world of cheap food for Americans living at the margins.

What opportunities do people have to eat healthy? Who is responsible for food deserts and processed food in American schools?

Fault Lines finds food revolutions taking place and speaks with the people that are fighting back.