Yes, I know about the controls we try to put on the paper and ink and that the presses are of a particular type. I sold to the printing industry for about 20 years. However, that works only here at home. Foreign paper and ink manufacturers can escape such scrutinity if they care to. Some counterfeiting countries could even, and may, have their own paper and ink manufacturers. The same kind of presses (intaglio) that print money are used in other high quality, long run (high quantity) jobs so the purchase of one does not necessarily mean it is used to print money.