Mexico launches app to help migrants facing US detention

Mexico is developing an app that will allow migrants to warn relatives and local consulates if they think they are about to be detained by the U.S. immigration department, a senior official said Friday.

The move is in response to President-elect Donald Trump’s threats to carry out mass deportations after he takes office on January 20.

The app has been rolled out for small-scale testing and “appears to be working very well,” said…