Pass the ButterwormsBy: Tim Cahill In Pass the Butterworms, Cahill takes us to the steppes of Mongolia, where he spends weeks on horseback alongside the descendants of Genghis Khan and masters the Mongolian death trot; to the North Pole, where he goes for a pleasure dip in the 36 degree water; to Irian Jaya New Guinea, where he spends a companionable evening with members of one of the last head hunting tribes. Whether observing family values among the Stone Age Dani