books.google.ca - Secret Service provides the first comprehensive history of political policing in Canada – from its beginnings in the mid-nineteenth century, through two world wars and the Cold War to the more recent 'war on terror.' This book reveals the extent, focus, and politics of government-sponsored surveillance...http://books.google.ca/books/about/Canadian_Secret_Service.html?id=saM_hcySs20C&utm_source=gb-gplus-shareCanadian Secret Service