Mine-safety bill sent for Senate vote

New legislation sent to the Senate floor would require all mines to have state-of-the-art two-way wireless communications and tracking systems in place within the next three years.

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<p><a href="http://www.physorg.com/news67171943.html">Mine-safety bill sent for Senate vote</a></p> <p>New legislation sent to the Senate floor would require all mines to have state-of-the-art two-way wireless communications and tracking systems in place within the next three years.</p>