South Korea just negotiated the release of hundreds of its citizens detained in what became the largest single-site immigration raid in U.S. history—and it’s exposing major cracks in how foreign companies operate on American soil.

The raid hit a Hyundai-LG electric vehicle battery factory construction site near Savannah, Georgia, last Thursday, sweeping up 475 people. About 300 were South Korean nationals, according to South Korea’s foreign ministry.

What the Deal Means

South Korea’s presidential chief of staff Kang Hoon-sik announced Sunday that talks with the U.S. wrapped up successfully. The plan? Charter a plane to bring the detained South Koreans home once some paperwork gets sorted out.

But here’s where it gets complicated: Nobody’s saying whether these workers can leave voluntar

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