CNNW CNN Newsroom May 26, 2012
after four people died. it is raising concerns about traffic jams on this trek. too many climbers trying to make their way could make the journey more treacherous even though today's adventure seekers have sherpas and oxygen tanks. ken cool joins me by phone from mount everest, at base camp on his 10th trip to the summit. wow. amazing. good morning to you, appreciate you joining us by phone. first of all let me ask you, did you know the climbers who died last weekend? >> no, no, i didn't. it is very sad event on the mountain here, obviously most of the base camp was shocked. one of t...