A U.S. government watchdog found multiple problems with the construction, manufacture, and design of the Keystone pipeline, validating President Joe Biden’s decision to revoke the permit for a Keystone XL extension, leaders of several House Democratic committees said on Monday. The lawmakers requested the Government Accountability Office report in November 2019 after more than 11,000 barrels of oil leaked from the pipeline system in two releases in less than two years. “GAO found that preventable construction issues contributed to the current Keystone pipeline’s spills more frequently than the industry-wide trends,” they said in a statement. Keystone’s four largest spills were “caused by issues related to the original design, manufacturing of the pipe, or construction of the pipeline,” the GAO report said. Biden […]