Even if you could specify a set of rules, how would you trace violators? If TOR can protect child porn addicts, why not "Defence" departments?

You have some advice on mirroring/Raid. Be sure to address your points of failure/threat:

HD failure

Use SSD(s) rather than a hard disk, mirrored if possible

Power glitch

Get a UPS or run on a locked-up laptop.

Virus

no internet connection (do not share LAN with any internet-connected PC) + remove USB connections and disable them in OS

Equipment Theft

take daily backups home or to a safety deposit box. Keep 1 for every day of week + 1 for every week + 1 for every month

Lightning or motor surge

good surge supressor(s)

Equipment failure

have duplicates available, immediate for low-cost, at shop for hi-cost; replace failing/old stuff.

Andrew Carnegie and John D.Rockefeller are remembered, usually sans first names, because they gave money away to intellectual causes - Rockefeller grants, Carnegie Libraries, Carnegie hall, Carnegie-Mellon University. They made lots of money keeping down workers' wages and keeping prices high.
But what do you do after you accumulate that pile? How could you spend a billion dollars on yourself? or forty? Time to turn over a new leaf and spend the money making people happy.
But there is no Stephen P. Jobs Foundation anymore. Apple may live on, but Jobs is history.

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Hey, the world needs more timbits and double-doubles! If he can deke them out well enuff, maybe sell them some hydro, get those hosers to buy some cases of 50, or maybe just some pop, KD, or a nanaimo bar or two.

Give em all longnecks. Heineken for the suits, Bud for the blue collars. No glass, no cleaning, then take a nap.

The Apple][ had an open architecture with 8 open slots. These got filled with memory, z80 processor cards, HD interfaces, and lots more. It spawned an industry. Now Apple is busy selling sizzle rather than protein, gloss rather than substance. But they do sell. There are more rich idiots than geeks.

Use a diaper bag.

Currently, integrated circuits like CPUs are fabricated using UV light, wavelength 10^-8m. Gamma rays are 10^-12m long. All other things being equal (but they never are...), this may lead to chips with 10^4*10^4=10^8 more features. This might be worth constructing a 100m long gamma ray lens or two.

Basically, UV, acids, and our atmosphere, especially in cities, is hostile to colours we use in images. Look at the faded signs as well as faded photos. But print on non-acid paper, with inert pigments rather than fragile organic dyes, and keep the air out with a sealed frame or box, and you can expect hundreds of years of stable colour life.
So print it yourself (Canon and Epson have pigment inks on some photo printers) on no-acid paper and matte it under glass (UV protection), keep it out of the sun, and enjoy. (Not against the glass- it will stick. That's why the matte.)
If you're storing photos away, make sure the environment is all non-acidic, too, eg, metal boxes not cardboard or plastic.
Cost-wise, look for processors who advertise no-acid paper and pigment inks.
See http://www.wilhelm-research.com/ for the most comprehensive look.

Want to learn A Programming Language? Learn APL. Nothing else approaches it in parallelism or will be as useful when we all have thousands/millions of processors in the box.

This seems to assume we rise before noon. If we rise after noon, then our beverage of choice in the morning is not the hair of the dog, but the dog itself.

If the US can't stop many, many tons of weed and coke coming in, what's to prevent an atomic weapon arriving the same way?

Release drugs by a laser shot? It usually takes a handgun or cash for me to release my drugs....

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