Well, I'm not an aircraft engineer (either ground or flight), but I really don't remember 120v 60hz AC service routinely available on most military aircraft I've flown in. The stuff I've seen is 120 Vac at 400hz or 28 Vdc.
I suppose a multi-billion dollar program to retrofit all these AMC aircraft to include US household current on the flight decks of the current transport aircraft inventory wouldn't be all bad...

Since the device actually needs 5Vdc it's going to need a converter anyway. Also a device to convert 120Vac to 5Vdc may or may not care what the frequency is.

All the GPL forces you to do is to release source code if you plan to redistribute GPL code, including code that you modified. You aren't required to share anything, if you don't want to. In other words, you are free to download GPL code, modify it all you like, and use it all you like without sharing a thing.

It's important to remember that most people (both individuals and corporations) don't distribute software at all. For people who wish to use software the likes of EULAs, CALs, per user/machine, locking to specific hardware, is likely to be far more of an issue. (Especially in a corporate setting.) Since these are restrictions on how the software can actually be used. Whereas GPL software puts no restrictions on use. Including not restricting how many copies you make for your own use.
If you want to distribute someone else's software copyright law requires that you have the copyright holders' permission to do so. In the case of GPL software the GPL grants you that permission.There is always the alternative of negotiating with the copyright holders.

You don't think the presence of explosive recipes, instructions for the manufacture of ricin, and price lists for military weapons on the same USB drive isn't evidence as to what he meant by Jihad?

It's also possible that the information could be used to write an article (or novel) opposed to terrorists and their methods.

Or the fact that he pleaded guilty.

That's really the only issue.

Prepared for jihad. That's your argument.

The word "jihad" is transliteration of an Arabic word. The usual translation is "struggle" but when translating between languages context can be very important.
Thus it can matter a lot if the original letter was in English or Arabic.

The TS1000 had a slightly different motherboard, with an NTSC RF modulator and twice the RAM (2K!) built in.

IIRC the ZX81 board could actually be fitted with a 2k static RAM chip. There were also two different ways getting 1k. Either two 4bit chips or one 8 bit chip.

Sun Tzu also stated (paraphrased) that if you find yourself in a position where war is final option, you expend every ounce of your military force from the first moment and crush your enemy absolutely, demoralizing them and ending the conflict forever.

This would only be possible if your military is capable of doing this to your enemy. Wonder what he had to say about the situation of facing an enemy who's military greatly outmatches yours...

All they have to do is include a few thousands signs with each order that says "This cable is GroundSmart Copper Clad Steel Cable and is worthless to scrap yards"

You have to ensure that the signs are in all appropriate languages and that they themselves have no scrap value.

Nominal skin depth in copper at 60 Hz is about 9 mm. It takes a lot of current to require wires with a radius greater than 9mm.

Which would be indistinguishable from solid copper until cut to a depth of more than 9mm and still contains a substantial quanity of copper.

You overestimate the intelligence of thieves. The word is out that cable is valuable so the average thief will carry right on stealing it.

Also by the time the thief discovers the cable isn't valuable the damage has already been done. As happens with telephone cables. Since the typical thief can't tell the difference between copper and fibre cable before cutting it.

30,500 meters is NOT space, and falling from stationary at 30,500 meters is nothing at all like re-entering from REAL space at full orbital velocity.

In terms of impact survival you could just as easily drop from 1km.
A dropped object can't exceed its terminal velocity and will be going more or less straight down.Whereas an object entering the atmosphere can hit the ground at higher than terminal velocity and have a substantial horizontal component to its motion.