Who knows? The "advanced notice" (I'm assuming here you're referring to IU's decision to place him on leave, remove him from their web pages, and notify his colleagues, more than week before the raid) makes this look less like some extrajudicial ICE-type thing, not more. But nobody knows anything right now! We know he has legal representation, from the story, and competent legal representation is going to tell you to shut the absolute hell up in a situation like this, so there's not much to learn from the fact that Goodin can't raise him for a quote.

My only take here (besides the certainty that the shadowy hand of the FISA FISC court is not behind all this) is that it doesn't look like another ICE raid.

> It's also pretty clear that this isn't a normal espionage case,

You don't know if its detained, you don't know if is in the territory of the USA, you don't know anything....If it's a US Citizen would be espionage because?

There's an enormous semantic distinction between "Wang vanished" and "Wang was vanished".

Yes, as far as we know he vanished, but as far as we know he did so under his own will before the university even put him on leave.