New Guardian research shows private security workers outnumber public police officers for the majority of the world – in a business that now dwarfs what is spent trying to end global poverty.
They envision a future Europe in which they can feel fully at home. But as they seek the peaceful integration of Islam into European life, they face an array of forces aligned against them.
An interactive journey through the history of HIV/AIDS.
Documentary on the origins of HIV AIDS, and the promise of a cure, premieres around the world in advance of World AIDS Day, December 1, 2014.
Scientists deep in the African Congo have discovered forgotten clues that are rewriting the story of the global pandemic and revealing shocking facts about its origins.
This week: the global rise of private security services, China's motivation for investing in renewable energy, and photographs from a teenage refugee.