Rokhaya Diallo: how racist policing is fueling unrest in France

As France celebrates Bastille Day authorities are on alert for a resurgence of street violence. More than 3,000 people were arrested during recent nationwide protests triggered by a video of police killing black teen Nahel Merzouk. According to European Network Against Racism data, North African Arab or black people are twenty times more likely to be stopped by French police. French Senegalese journalist Rokhaya Diallo says Nahel's killing is part of a long pattern of racist policing that has divided the country.