China Buffet workers freed on condition they don't sue

"'Our focus was the way (the migrants) were treated by the government,' Yang said. 'We were trying to get to the explanation. Different authorities gave different explanations. Some have apologized, some gave us excuses. It appeared like a very big case. They mobilized a lot of resources. They flew in agents from all over the country. They even used a helicopter. And it turned out to be nothing.'"