By laeffe (the new channel of Feltrinelli) and LA7, four documentaries filmed by Michael Mann, the director of Collateral and Public Enemies - Witness: Juarez, Witness: Libya, Witness: Rio, Witness: Sudan

Drugs, poverty, violence, corruption, arms trafficking and ethnic war have created some of the most dangerous hot spots on the planet. Witness follows the new generation of photojournalists in conflict areas in Mexico, Libya, Brazil, Sudan. What makes a journalist go closer to the action when everyone else is looking for shelter?

Witness: Rio

In Rio, a city caught between police and gangs, the intrepid photoreporter Eros embarks on a gruesome search for hidden bodies inside and outside the favelas.