Brazil: Apps warn residents of shootings

Every year there are thousands of shooting incidents on Brazil's streets in which innocent bystanders are injured or killed. In some cities, apps now give real-time warnings to residents about areas to avoid. This week, Brazil was shaken bytwo Hollywood-style bank robberies. On Monday night, heavily armed men held up several banks in the southern city of Criciuma, terrifying residents. Mayor Clesio Salvaro used social media to appeal to citizens not to leave their homes. Media reports said that the criminals took several innocent bystanders hostage during the more than hourlong operation and used them as human shields. But the victims were all released unharmed, they said. The robbery...