In Los Angeles, Francisco "Chavo" Romero and a dozen other immigration activists were out before dawn on a recent summer morning, gathering near an ICE staging area so they could tail the immigration agents' vehicles and send alerts over social media on the officers' whereabouts.
In Austin, a technology worker created an app to report sightings of agents – it has over 1 million users. On Long Island, New York, another activist developed a similar app to report immigration enforcement raids in local areas.
