News roundup: 84 Lumber hit with subpoena in Louisiana over Katrina contracts … Covington company’s location-tracking network vulnerable to hacking, security researcher says … Heat wave on track to propel Southern electricity grid demand to all-time high

    Getting served: The Louisiana State Licensing Board for Contractors has subpoenaed representatives from Pennsylvania-based 84 Lumber to provide company documents and appear in Baton Rouge for a hearin…


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