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Most commercial books and newspapers are effectively 'source available', which is closer to closed source than open source.

Just print the hex dump, would probably be quite large unless you used microfiche.

The original code for PGP was distributed that way. Which was also banned in the US.

But yeah, it is a pretty bad comparison.

When was PGP banned in the US?

My bad. It was export restricted and they were prosecuted for it. That’s the reason they had to publish it by book.