Ford has issued a recall for almost 420,000 Expedition and Lincoln Navigator SUVs due to a defect in the seat belt retractor pretensioners that could lock up during a crash, potentially causing injury. The issue stems from a malfunction where the seat belts might not retract properly, which could severely limit occupant movement and increase the risk of harm. This recall underscores the importance of vehicle safety features, especially in high-end SUVs, and highlights the need for regular inspections and manufacturer recalls to ensure public safety on the roads.