By Patrick J. McDonnell, Los Angeles Times

YOJUELA, Mexico — Modesta Matías Aquino was working her regular morning shift — 3 a.m. till noon — at the Glass House Farms in Camarillo, caring for rows of marijuana plants.

Among her co-workers on the morning of July 10 were two of her daughters, aged 16 and 19.

“With everything going on, with the raids, there had been rumors that something bad might happen,” Matías recalled.

About 9 a.m., she said, phalanxes of masked agents in tactical vests sealed off the sprawling compound. Matías and her daughters were among more than 300 undocumented immigrants — including at least 10 minors — who, according to U.S. authorities, were detained at a pair of Glass House sites.

The raids, like other such operations across the United States, split many so-

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