Yes; the interrogation is that something. The simple string comparison starts the process.

What an annoying inconvenience I imagine, having to interact with that security theatre, possibly multiple times...

You can get a readdress number to use when booking if you are a false positive.

What a fucked system. A passport number is surely the right thing to use. Linked to a document that is hard to forge and if a terrorist can forge a passport, well, they will use a name not on the list eh?

Domestic travel doesn't require a passport. Hence the redress number.

Thank you, I didn't know that.

There's probably some typo matching too. Like T Kennnedy.