Wikipedia Tourism 3
December 28, 2007 4:39 pm whateverWhen the British Secret Intelligence Service (SSB) discovered that semen made a good invisible ink, Sir George Mansfield Smith-Cumming noted of his agents that “Every man carries his own stylo”.
When the British Secret Intelligence Service (SSB) discovered that semen made a good invisible ink, Sir George Mansfield Smith-Cumming noted of his agents that “Every man carries his own stylo”.
January 7th, 2008 at 12:46 am
Ewww. Seriously, think about it. What about female spies? What did they use?