https://fas.org/irp/nsa/m1-52.pdf
Do you notice anything funny about the document? Did you see the hidden text/communication in the document?
The hidden font is called HiddenHorzOCR
Sauce: Here's what it looks like when the text is revealed… just a sample of the document, but the text is like this all throughout the doc.
Nice Time Stamp… MOAR?
Rick is that you?
Rick?