
Couple charged in identity theft mystery had invisible ink, coded papers and said "things consistent with espionage," prosecutor says
A search of the couple's home turned up an invisible ink kit, documents with coded language and maps showing military bases, prosecutors said.

Not the typical Websleuths thread but this really caught my eye and I thought might be an interesting discussion here. He definitely had a sensitive job and I am surprised got a top secret clearance given the fact he was not using his own identity.
As the son of a professional cold warrior I firmly believe this goes on far more than we know. What do you all think?