Reading another good book, A Measureless Peril (America In The Fight For The Atlantic, The Longest Battle Of World War II) by Richard Snow (2010).
http://www.nytimes.com/2010/05/16/bo.../Thomas-t.html
Lots of interesting detail, like U-123 entering New York Harbor at night on January 14, 1942, and what the commander wrote about seeing the city.
More surface raiders, World War II. Stier against Stephen Hopkins.
Stier
http://www.bismarck-class.dk/hilfskreuzer/stier.html
Stephen Hopkins
http://www.usmm.org/hopkins.html