Tim Whewell gains rare access to the shadowy world of Russia's radical nationalists fighting in eastern Ukraine for Novorossiya, or New Russia, and a dream of empires past.

A vivid portrait of the everyday lives of girls and women at a turning point in Afghan history. Lyse Doucet visits Kabul to see how the lives of Afghan girls and women have changed since the fall of the Taliban 13 years ago, and to hear concerns that these hard-won gains are already being threatened as the troops depart.

For 100 years, an intriguing mix of people have been criss-crossing the US by Greyhound bus. To mark the company's centenary, Laura Barton sets off on an unplanned journey ‘to look for America’. She is conscious of the discrepancy between what the bus line represents in the collective imagination – an idea of freedom, adventure and possibility – and the realities of cross-country coach travel.

Mike Wendling explores the controversy surrounding the Washington Redskins. It's one of the most popular American football teams but many Native Americans say the name is racist.

For most people in the West, the swastika remains inextricably linked to the atrocities committed by the Nazis. But there have been calls to reclaim the symbol from its Nazi links and restore its origin as an ancient symbol for good luck. For many, such a suggestion is an outrageous affront to good taste. Can these two views ever be reconciled?

In the wake of the global economic crisis, what does capitalism mean to us today? Stand-up comedian Colm O’Regan visits the Kilkenomics Festival of economics and comedy in Kilkenny, Ireland, and heads to New York to ask what people really understand about capitalism.

For Assignment, Chris Rogers goes undercover to reveal the hidden shame of Guatemala’s hospital for the mentally ill.

In 1974, New York City became the canvas for a new generation of Graffiti pioneers. Who were the teens behind the 'tags' - now the veterans of the scene? Why did they create this movement? We meet some of those who defied the law (and their parents) and diced with death to chase fame and acceptance of their peers.

Two decades after the death of notorious drug baron Pablo Escobar in 1993, he still looms large in the Colombian psyche. In some quarters, there is an ambivalence towards this ruthless killer, an admiration for the man who made an estimated US $20 billion and built homes for the poor. But many reject the Robin Hood image, and see his legacy as deeply corrosive. Linda Pressly meets victims, a cartel-insider, and Pablo Escobar’s sister as she finds out how the story of this most notorious drug baron still resonates in the city of Medellin.

Director Orson Welles was asked to write his life story in his later years. He declined but was convinced by his friend Henry Jaglom to discuss his life over a weekly lunch at their favourite Hollywood restaurant, Ma Maison. The hundreds of tapes, recorded from 1983 to 1985, reveal extraordinary, frank, conversations between Welles and the independent director Jaglom.