Foreign controlled seems like a very clear dividing line that greatly limits abuse. It helps that unlike China, the United States has judicial review.

If you're saying that no company controlled by foreign nationals should be allowed to do business in the US, that is absolutely a sharp, consistent dividing line.

I don't think you're saying that, though.

The relevant legal powers are indeed confined to “property in which any foreign country or a national thereof has any interest” and this judicial decision illustrates their limits – an irrational assertion that the use of emergency national security powers is warranted may be subject to judicial review. See my other comment for citations: https://news.ycombinator.com/item?id=24615640

I don’t really know where I stand on the issue, but it is fairly clear how this is a potentially serious threat to national security.

Maybe a better solution is allowing the us government unfettered access to source code, algorithms, data collection, etc.

Edit - it seems reasonable that if a private company is able to massively influence the countries politics they should be scrutinized more closely. IMO it’s like have 1 national newspaper, but it’s a social platform rather than newspaper.

if it's a clear threat, the government should have no problem explaining what exactly the threat is. It seems plausible to me that there is a national security threat, but i'm bothered by the government being able to invoke national security as a set of magic words that excuse them from explaining anything further.

> if it's a clear threat, the government should have no problem explaining what exactly the threat is. It seems plausible to me that there is a national security threat, but i'm bothered by the government being able to invoke national security as a set of magic words that excuse them from explaining anything further.

It's pretty obvious: TikTok could be a potent propaganda tool, and in a time of increasing geopolitical tensions, you don't hand an adversary nation potential weapons like that. Also, Chinese intelligence is interested in collecting information on Americans (and others) that an app like TikTok could provide. For instance:

https://www.nytimes.com/2018/12/11/us/politics/trump-china-t...

> WASHINGTON — The cyberattack on the Marriott hotel chain that collected personal details of roughly 500 million guests was part of a Chinese intelligence-gathering effort that also hacked health insurers and the security clearance files of millions more Americans, according to two people briefed on the investigation....

> Such information is exactly what the Chinese use to root out spies, recruit intelligence agents and build a rich repository of Americans’ personal data for future targeting. With those details and more that were stolen from insurers like Anthem, the Marriott data adds another critical element to the intelligence profile: travel habits.

> James A. Lewis, a cybersecurity expert at the Center for Strategic Studies in Washington, said the Chinese have collected “huge pots of data” to feed a Ministry of State Security database seeking to identify American spies — and the Chinese people talking to them.

> “Big data is the new wave for counterintelligence,” Mr. Lewis said.

The thing is US has its own TikToks: if US bans TikTok, CCP will use its influence to undermine FB, WhatsApp, IG, Snapchat, etc. CCP is pretty much saying: "we know you're spying on the entire world and we want to do the same; if you torpedo our secret submarine, we'll do the same to yours."

They’ve already blocked those in China, Gmail, Google, FB etc. The insidious thing with WeChat is politically sensitive items are reviewed then blocked and use of the app trains their blocking heuristics.

CCP's influence doesn't end at China's borders.

The Matrix is all around us, in the food we eat, on the television, inside this very room...

"but it is fairly clear how this is a potentially serious threat to national security."

Yeah... the Chinese could, like, get the inside scoop on some serious teen drama.

They decide what content is viewed by millions of teens who will be voting in a few years. It’s not that far fetched to show them more violent content / mildly biased content / etc in order to move their political views a bit.

If they successfully do that then isn't that in fact the exact democracy working as it should? If you turn it around, you are endorsing the US government cutting off free speech specifically to manipulate people's voting opinions towards its own perception of what is "good". That seems almost exactly the opposite of the spirit of the constitution.

Perhaps an appropriate response here would be to detect this manipulation and highlight and educate people about it. Possibly create regulation to outlaw specific types of highly problematic aspects of it. But I find it hard to simultaneously accept that it's both so subtle as to be undetectable and unregulatable and yet so terrible it warrants arbitrary restraint of free speech.

Free speech is a right that applies to citizens, not foreign governments.

I don't think the problem is that if/when it happens, it will be "undetectable". The issue is that if we have a polarized party-over-country political environment (which we do currently have), there is absolutely no guarantee a) that there will be a consensus about that the problem is real, that it matters, and that it should be addressed, b) that the party in power doesn't stand to benefit from interference and therefore takes no action, and c) we will have eyes looking at this seriously before it is "too late".

Protecting free speech of geopolitical competitors (China) and their economic agents (TikTok) is legitimate avenue for democratic destabilization.

It seems to me that democratic destabilization in US is already in full swing and has nothing to do with TikTok subtly changing youth opinions.

The issue isn't whether TikTok is currently doing it or no, its whether this is a national security risk in the future, which is absolutely is. I think he's an idiot and he's using the issue to distract from Russian interference, but its a concern that if you only wait to address this _after_ its already a problem, it will already be unaddressable for the reasons enumerated in my comment.

But it might have something to do with Facebook advertisement paid by whoever pays more.

The KGB already did this in 2016 and the White House conveniently doesn't care and actually vehemently denies anything happened. Now, in the lead up to an election, suddenly they care about foreign intervention of elections? Or is it more likely that Donald Trump is just trying to tally as many "wins" as possible in the lead up an election like any politician would? The CCP already compromised our technology supply chain not even 2 years ago [1] did the White House do anything then?

[1] https://www.bloomberg.com/news/features/2018-10-04/the-big-h...

Minor nitpick, but the KGB didn't exist in 2016, that would be FSB. Unless you are referring to Belarus, which does have a KGB.