Having watched ww.2 on you tube i saw one documentary about spies , that is German agents who landed on our shores, captured and then turned around ending up as double agents working for us, and the Americans .
it was interesting to note that these spies used two aspirins very well crushed and with a little water, with a pen with a fine nib write hidden messages in between the lines of a normal hand written letter,
it wasn't clear about the process for removing these hidden messages but it was amazing to think that some one or other was clever enough to have worked it all out,
Q; are you interested in some of the amazing events and ideas, that happened during ww.2
if so will you share your thoughts with us,.