Mealey's (February 7, 2018, 2:23 PM EST) -- DENVER — Secretary of the Interior Ryan Zinke and other federal defendants on Feb. 5 filed a brief in the 10th Circuit U.S. Court of Appeals arguing that a merits opinion the court previously issued correctly held that the U.S. Bureau of Land Management’s (BLM) published proposal to rescind the 2015 hydraulic fracturing rule rendered the instant appeal “prudentially unripe” (Wyoming, et al. v. Ryan Zinke, et al., No. 16-8068, 10th Cir.)....