Rescuers on 5th day trying to save US explorer who became ill 3,400 feet below Turkish cave (video)

Around 150 rescuers are working to save American scientist Mark Dickey, who became trapped around 3,400 feet underground in Turkey's deepest cave on Saturday after suddenly falling ill. (See video below, posted by Today.)

The 40-year-old researcher and highly experienced caver was co-leading a team that was mapping a passage in southern Turkey's Morca cave when he experienced gastrointestinal bleeding. — Read the rest