Technology once again threatens to thwart police detection of potential criminal activity. As David Noriega reports for Buzz Feed, the service allows users to interact with one another and alert each other of imminent checkpoints in order for the undocumented immigrants to avoid police detection and the legal problems that flow therewith. The service continues the theme of technology being pitted against law enforcement's plans. The service is called Paselavoz - follow the link to check out how it works. Here is the article from Buzz Feed.