alfred scott mclaren details is nearly 30 year naval career in which he took place in submarine operationsllowing his services, he remained an active submariner and became the president of the explorers club and is currently at the -- president of the american polar society. he discusses his entire career including his deployment in a nuclear submarine during the cuban missile crisis. and several pioneering expeditions under the arctic sea ice. the u.s. naval memorial hosted this event and it is about an hour and a half. >> today we are pleased to have alfred scott mclaren to discuss his book silent and unseen: on patrol in three cold war attack submarines. the captain is a graduate of the u.s. naval academy class of 1955. and a veteran of more than 20 cold war missions and three arctic next editions. -- arctic expeditions. he was awarded to legion

. >> today we are pleased to have alfred scott mclaren to discuss his book silent and unseen: on patrol in three cold war attack submarines. the captain is a graduate of the u.s. naval academy class of 1955. and a veteran of more than 20 cold war missions and three arctic next editions. -- arctic expeditions. he was awarded to legions of -- cold warold more submarine commander and was the american -- president of the american polar society. a firsthandthor of account of historic under ice survey of the siberian continental shelf by the u.s. queen fish. he joins us from his home in need of an colorado -- neither land, colorado. alfred: i will take you through a variety of things. the very first part i will take you through some of the highlights from my first book. the first survey of the siberian continental shelf. when i finish talking about the book, if there is time, i have 1999, i, starting in started documenting the titanic 16,000 feet almost to see the german battleship bismarck. up to last november i was chief pilot of a high-speed submersible that could fly like an airplane. you