Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Essential reading for new submariners

It seems to me that the government should have told us about these exploits long before the authors penetrated the classified documents of the U.S. Navy. This book captures the essence of the covert attempt to protect the cold war players from each other. A great book, a must read, for anyone that enjoys true, real life, sit on the edge of your seat exploits.