A Southwest Airlines flight headed from Seattle to Dallas was turned back mid-flight after it was discovered that a human heart had been left on board, officials said Thursday. The plane had was over eastern Idaho — around 600 miles (950 kilometers) into the journey — when staff discovered the “life critical cargo shipment,” meant for delivery back in a Seattle hospital after being transported from California. “Once we realized the error we immediately worked to return to Seattle,” airline spokesman Dan Landson told AFP.
