An app has been launched in Paris warning people if they are in a so-called no-go zone and giving live alerts of sexual assaults. Dozens of people have already downloaded No-Go Zone, which is available on Google Play, and it currently has a rating of 4.3 out of 5. Its designers say the app is meant to let people know if they are in a dangerous area and allow them to avoid places in the French capital where they might be at risk of violence or crime. One Parisian reviewer said: 'Given the current degradation, it is better to have...