TRIANGLE, Virginia, April 15 -- The AFL-CIO United Mine Workers of America issued the following news release:

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UMWA, USW Fight to Uphold Life-Saving Silica Protections for America's Miners

The United Mine Workers of America (UMWA), joined by the United Steelworkers (USW), filed a motion in federal court today to intervene in the ongoing administrative review proceeding concerning the Mine Safety and Health Administration's (MSHA) defense of t . . .

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