Mealey's (January 23, 2020, 1:56 PM EST) -- PHILADELPHIA — The Allegheny County Employees’ Retirement System (AERS) on Jan. 21 moved in a Pennsylvania federal court for the Public Employees Retirement Association of New Mexico to be appointed as lead plaintiff in a class action against a hydraulic fracturing pipeline company, the executives of which the plaintiffs say committed securities fraud and coerced a Pennsylvania agency to get approval for the Mariner East 2 pipeline (Allegheny County Employees’ Retirement System v. Energy Transfer LP, et al., No. 20-200, E.D. Pa.)....