It's probably a screw up.
I'm betting they intended to black out everything except a couple of random articles, both definite and indefinite (like the, an, a), but the magic marker ran dry and while that person was looking for a new one in the office supply cabinet, the messenger came by and picked it up with the other requested, but already censored to uselessness documents.

And the stuff that does get through pisses us off enough we often swear to never use that product.

Not unless they sent them Fed Ex. :p

No, not really.
It's got a great strength to weight ratio, but it might be better to say they reduced the effective weight while retaining most of the strength of the material.
The stuff needed for the cable of a tethered satellite needs a lot more than just a great weight to strength ratio, it needs a certain level of strength and resilience.

Look at it this way, if you had a steel component that weighed 1,000lbs and could hold up 20,000lbs and you replaced it with this type of similar to aerogel lattice type steel component, you are looking at a tiny weight (probably) less than 3 lbs, and it could still hold up around 20,000lbs. Of course, if the project needed a component that size that was able to hold up 50,000lbs, neither one would be feasible.
Some people might suggest that you could just make it bigger, but that's often not a feasible idea, even if it is lighter than the usual materials. For one example is why skyscrapers are not made of brick. It doesn't matter how wide your walls of brick would be, after a certain point, the weight of the bricks would crush the lower ones, and then the whole building collapses. The steel reinforced concrete we use can sustain much larger loads, and so is used for tall and heavy projects instead of bricks. Of course tethered satellite has to withstand much greater stresses, whether it's crushing down, pulling up, or swaying to the side. That's why super light but otherwise more conventional materials won't work.

It was decided when they set up the patent systems that since math is universal, no mathematical formulas or algorithms could be patented. No owning 2+2=4 or the far more complex mathematical proof of it either. Math and all it's variations belong to everyone, even if you don't understand it.

Patenting math was considered as ill advised as letting some lout wander into the forest, pick up a pretty leaf, and then patent leaves.
It still is, but some lawyers are really good at obfuscating what they are actually requesting patents for, so watch out for that patent troll sending you a bill for your vegetative violations of his lawful patents.

So what your saying is that Canada doing this is somehow the fault of the USA?

How about, numerous countries try to do this, with one of the most publicised being the USA, though it is deplorable in all cases, even when Canada tries it.

Squads of boomerang throwing 'security specialists'. ;)
Kite fighters whose fighting kits have a special 'fringe' hanging from them that will get tangled in rotors if they get too close.
(Yes, Kite fighting is a thing, has been for a really long time, it's just not popular in most of the world.)
Your own remote controlled aircraft that drops shiny colorful celebratory strands that can conveniently get tangled in rotors.
A horde of people with lasers desperately trying to play with imaginary flying kitties. Do not use on manned aircraft.

I'm sure there are lots of other methods to intentionally or 'accidentally' mess with unwanted aerial surveillance.

A stupid American troll I presume :P

It can very easily be argued that the greatest advancements in the sciences, especially in medicine, have been the result of researchers and inventors seeking to solve problems and diseases that plague humanity and that the subsequent commercialization of those discoveries and creations were not their primary motives and in numerous documented cases antithetical to their desires. (Edison was not one of these.)

At the very least, sender, recipient, time/date. Heck, maybe they even saved the email subject line.

Probably the only thing she's compromising is the DOJs sense of invulnerability and entitlement to do whatever they Fing want knowing full well that they can claim state secrets to hide anything.

I actually had no idea we were buying Russian rockets.
Oh well, at least they are better than North Korean models.

So, what is the Arianes launch record and failure determinations?

I wonder if SpaceX has a design for a heavy lifter yet...

It's odd how the article keeps saying Obama Administration, especially when you know that the whitehouse isn't wasting it's time on local stuff like that.
They should specify which departments or people are actually making these demands for the locals to not release the info.
They do state specifically in one case, and that was the FBI. You know, one of those three letter agencies that happily lie to Congress, the Senate, and the Whitehouse.

That's of course assuming they even use radio or other em radiation based systems we'd even recognize as communication.
If you want me to tell you what they might use, I would have to first reply with a question, "If you could talk to someone a thousand years ago, and you asked them how would people a thousand years in the future communicate at long distances with each other, and what do you think their answer would be."

Although we can speculate in a limited and fanciful way regarding unknown technologies as opposed to those that are simply improvements of that which is already known, realistically we just have no bloody idea of what the future discoveries and developments will yield.
Unfortunately, all this looking for radio signals doesn't take this into account. Searching for radio can only find radio, not the tech that came before, and certainly not the tech that may come after.

Don't get me wrong. I fully support the idea of their being other sentient, intelligent, technologically adept life out there. I just really doubt we'll find it by looking for radio broadcasts.

Ouch for Valve.
This is gonna hurt.