Sure. Quick thought experiment: you've got a 24-bit scanner, which means 2^24 individual values, so 16.8 million. Let's say 2 million of those are yellow. How

Sure. Quick thought experiment: you've got a 24-bit scanner, which means 2^24 individual values, so 16.8 million. Let's say 2 million of those are yellow. How many different shades of yellow are you going to get from your scan? Do you take the average? Does the process leave artifacts - that is, does it print yellow over yellow and leave a physical trace? My point is you've got to make sure the signal is well below the noise floor because we're talking about the NSA, and there are more sure ways to filter this signal.