Two young girls sit in a holding area where hundreds of mostly Central American immigrant children are being processed and held in Nogales, Arizona.
Murrieta, north of San Diego, has become an unexpected flashpoint over illegal immigration. Earlier this week, protesters in Murrieta blocked a convoy of buses carrying immigrants from overcrowded facilities in south Texas to a U.S. border office here. But more immigrants are on their way -- and at a town hall meeting Wednesday, hundreds of residents vowed to keep pushing them back. Reporter: Steven Cuevas