Death threats, vandalism, investigations: L.A. immigrant rights groups in the fight of their lives

“No firmes nada,” a union organizer shouted into a bullhorn as he stood atop the flatbed of a truck outside Ambience Apparel, doling out battlefield legal advice not to sign anything. “You have a right to a lawyer. You are not alone.”Advocates and lawyers had arrived at the downtown store minutes after tips began to pop off at the hotline set up by the Los Angeles Rapid Response Network, a coalition of 300 volunteers and 23 labor unions and immigrant rights and social justice groups that was organized last year to respond to enforcement. They joined protesters and tearful family...