(NECN) - OSHA is warning top retailers to put safety first this Black Friday.
The Occupational Safety and Health Administration sent letters to Target, Wal-Mart, Apple, Best Buy, and BJ's -- urging them to take crowd management precautions.
It was just two years ago when a Wal-Mart security guard in New York was crushed to death by a crowd the day after Thanksgiving.
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