panic

"I panicked and my mind went blank. I felt sick," he told the BBC, now back home in South Korea.

He panicked, at first, fearing they were working on him.

A South Korean worker who witnessed the raid told the BBC of panic and confusion as federal agents descended on the site, with some people being led away in chains.

Agents in masks and riot gear marched for hours through the company’s vast greenhouses in Camarillo as workers fled and hid in panic.

"Parents with children moving into reception or secondary often don't realise how much uniform is needed until school begins. Then they come to us in a panic," she said.