*With what I am sure is a heightened sense of cautiousness, administrators are welcoming students and educators back to school today following threats received via email on Tuesday that forced a shut-down of all L.A. County schools.

The second largest district in the nation, Los Angeles Unified School District, saw school buses and parents dropping off the 640,000 students who were taken out of class yesterday; only to return one day later.

The closure was a precaution, according to District Superintendent Ramon Cortines, who made the judgement call after learning that school board members had received emails threatening an attack.

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