BBC: "Recent high-profile cases of unarmed black men dying at the hands of the US police have sparked protests and civil unrest in several American cities. The deaths of Michael Brown, Eric Garner, Walter Scott, and Freddie Gray are - some claim - evidence of long-standing problems with police racism and excessive violence. Four expert witnesses talk to the BBC World Service Inquiry programme, including the head of President Obama's taskforce on police reform, Charles Ramsey." More
