I'm not sure that's true. The B-1 forbids most work, including "construction", but there's a special set of rules for installing equipment sold by your foreign employer:
https://travel.state.gov/content/dam/visas/BusinessVisa%20Pu...
Many of those detained were employees of Hyundai's equipment vendors. A lawyer for some of those employees is alleging they were in fact compliant for that reason:
https://www.reuters.com/business/retail-consumer/lawyer-says...
If the DHS has evidence to the contrary, then it's had a week to disclose that and save some face. That they haven't may imply a significant fraction of those detained in these harsh conditions were in fact lawfully present.
Beat up people first. Check later. Often a force without badges, badges without numbers, without ID, without faces and without warrants.
It's an imperial private army.
Don't expect better. If the courts turn their backs, expect more cruelty, more disdain for law and procedures, more groups swept up, until ...
I’m tired of seeing stories with no real facts and similarly tired of comment sections discussing the issue without them either.
What actually happened here?
But the way that this was handled was completely out of hand, treating the employees (who have the paperwork handled by the company anyway) as common criminals, and to a country that's an ally (and one that you're trying to get to invest in your country), is completely ludicrous in a developed country, the type of action you might expect in the DRC or Myanmar.
And the fact that ICE said it took "months of preparation and coordination", means that they knew these people didn't have the proper visas and instead of warning the company to take its people home and/or come into compliance, they planned a high-profile military-style raid.
I'm not Korean but I can easily see how this would make Korean companies and their employees want nothing to do with the US.
If someone is firing a machine gun indiscriminately in all directions, it's naive to think you can survive by asking them to just please not point it towards you.
The people who were detained here are just like the average hacker news user - educated professionals traveling for business. Please imagine what it would be like to travel - in good faith - to Germany, Japan, or South Korea for work only to be detained, chained like cattle in poor conditions, and paraded in front of television cameras like a prize. How would you feel about continuing to work with that country?
Here is the call to action - if these actions by the administration upset you, call your senators and representatives and demand that the leaders of ICE and the DHS be held accountable for this raid and the conditions of these detention centers. We are perfectly capable of enforcing our laws without abusing people.
There is simply no visa that allows skilled labor to come to the US, work a temporary job for a multinational that's paying them in their home country, and leave.
The closest thing apparently is the "B-1 in lieu of H-1B"[1] and guess what? Another commenter posted this FT article that accuses them of abusing this B-1 visa [2].
Traveling for work is a huge pain in the ass, doubly so for this sort of temporary work assignment, and triply so if it's to the USA.
I've always been told to use a tourist or family reunification visa. For example, if China cracked down on this, they could easily put 10,000+ Americans in jail for a similar "visa abuse". They obviously would not bite the hand of foreign direct investment like this though.
I think it's informative to interpret the law - especially in the age of Congressional gridlock - as 300 years of terrible legacy code papered over the Herculean efforts of ops teams (the government bureaucracy). When that ops team starts arbitrarily treating the oceans of gray zones to their whims, to reward friends and punish enemies, you start the long trek to serfdom...
[1] https://www.wsmimmigration.com/us-immigration/temporary-work...
[2] https://www.ft.com/content/c677b9aa-2e89-4feb-a56f-f3c8452b3...
Neat and tidy summary of what MAGA is.