WASHINGTON – Bad wiring and a leak in what's supposed to be a “blowout preventer.” Sealing problems that may have allowed a methane eruption. Even a dead battery, of all things. New disclosures Wednesday revealed a complex cascade of deep-sea equipment failures and procedural problems in the oil rig explosion and massive spill that is still fouling the waters of the Gulf of Mexico and threatening industries and wildlife near the coast and on...



