Hundreds of people remain missing after a ferry capsized near South Korea on Wednesday. More than 500 divers, 169 boats and 29 aircraft have been involved in the rescue operation but their efforts are being hampered by bad weather. The Coast Guard has confirmed the deaths of 20 of the passengers. The president of the Marine company operating the ferry says his firm committed a grave sin Al Jazeera's Harry Fawcett reports on the latest, from a boat off the coast of Jindo.