What the US does to non-citizens outside the USA is a messy area. Inside the USA? The rules are far more clear.
As a collective institution there was the whole Edward Snowden thing where he pointed out that the NSA had definitely not been following those rules and no one who knew what they were doing seemed particularly keen on stopping them.
> Inside the USA? The rules are far more clear.
Is false. The NSA was/is carrying out a mass spying operation over a number of years and involving hundreds of people that directly contravenes those rules.
Can you clarify this? As far as I'm aware, the US govt can dispute anyone's citizenship without recourse, even if you're holding e.g., a valid passport.
From 2016: https://www.npr.org/sections/thetwo-way/2016/12/22/504031635...
As far as I know, nothing in this article has changed.
Your cite does not support your claim. If Palma had ever had a US passport (expired or not), his situation would never have occurred in the first place.