By the way, I'd be happy to accept liability for any damages such as the ones you describe, if I were selling you a home automation setup.
Thing is, this law will do nothing about making 3D-printed guns less accessible to be used for criminal purposes. It's still trivial to go and download the schematics and feed them into the printer. Sure, you'd be committing a crime merely by doing so now, but if you're 3D-printing it specifically to go and shoot one, I don't think that you actually care.
In any case, home-made AKs are probably not a good baseline. They still require a reasonably well stocked workbench, and some machinery for things like the barrel. But a single-shot shotgun can literally be made out of two pieces of pipe and a screw, all readily available in any hardware store - and is still more deadly than any of these 3D-printed plastic toys (and for bonus points, no-one is likely to recognize it as a shotgun, especially when it's disassembled).
I thought silencers were a hollywood invention
In USA, at least, "silencer" is the legal term for the device, as used in the National Firearms Act that sets up the regulatory framework.
As to how much relation the Hollywood type has to the real thing, it depends on the specific depiction and the specific real thing. Modern efficient suppressor designs combined with subsonic ammunition that is specifically designed to be suppressed can be pretty damn quiet, especially out of longer barrels where pressure is lower at the muzzle, and in bolt-action or other manual action firearms where the action itself doesn't make any noise during firing.
visible laser beams
You can actually kinda sorta get that IRL sometimes, with a sufficiently powerful laser (which rifle laser sights often are), because it will light up the dust in the air, or particles of water when it's humid (esp. outside).
The problem is that you still have to pay $200 and wait for several months to get one (and it's not a permit, by the way - it's a tax stamp; it does nothing other than produce some revenue for the state). And if it breaks or wears out, you have to pay the same for the next one. And the prices on them are very high largely because of the regulatory environment. And all of this is has no rational basis whatsoever.
Also, while it's legal on federal level, some states specifically ban silencers.
The irony is that you can do that in like half of European countries, where despite otherwise much more stringent gun controls, silencers are not prohibited (indeed, in many cases they're not regulated at all).
Collective responsibility is not a part of the Russian mindset
Even Crimean Tartars are OK with that
You mean, the ones that are permitted to talk about it, as opposed to being banned from Crimea and otherwise prosecuted for "extremism"?
Of course, the very idea of holding up high the results of a referendum on secession in a country where merely distributing leaflets promoting "separatism" can land you in prison for several years is supremely ironic. At this point, it doesn't really matter what Crimeans think, because joining Russia is a one-way ticket - wanting to get out is a crime.
If you use more then 5 tabs open something is wrong and you should learn about bookmarks
"You're holding it wrong."
No, we're not. We're holding it the way it's most convenient. Also, fuck you and your head-above-the-clouds UX horse.
As I recall, the last big battle in IE vs NN war was over "layers", and that was IE4 vs NN4. NN added a proprietary <layer> element and a bunch of related markup, while IE repurposed <div> by extending CSS (or was it still a draft then? I think CSS 1.0 was already done?). Consequently, you had many websites working only in IE or NN, because they used one approach or the other (some people redid their websites in both, but that was expensive). And from what I recall, I saw way more NN4-only sites back then than I did IE4-only sites. It wasn't until IE5 that "this site is best viewed in Internet Explorer" became essentially the default.
Every cloud has a silver lining; you should have sold it, and bought titanium.