The NTSB says a loose wire caused the power failure that led to the Francis Scott Key Bridge Collapse in Baltimore in March 2024. During a hearing today in Washington, officials said investigators found the wire was improperly installed and later disconnected, cutting propulsion and steering on the cargo ship Dali. A second blackout occurred when a flushing pump being used to supply fuel to generators shut off during the initial outage and wasn’t restarted — a practice investigators called “inappropriate.” Six workers died when the bridge fell, and the agency says the tragedy was preventable and never should have occurred. Rebuilding the bridge is now estimated to cost between four-point-three-billion dollars and five-point-two-billion, with completion likely delayed until late 2030.