During World War Two, there was a Commando craze that swept the country. It was during this time period that every segment of society appeared to be receiving Commando "type" training. Individuals from the Boy Scouts to War Workers to members of Law Enforcement were receiving it on some level. This book is an examination of how individuals trained in those methods may have utilized that training for nefarious purposes during the postwar era. What has been looked at in some detail is how "Kill or Be Killed" became "Killing is my Business". What is also discussed is how individuals such as S. R. Linck, who taught these unarmed defense tactics, did their part in making sure that the populace had some knowledge of how to defend themselves if the country ever came under attack by Nazis or the Japanese.