US has revoked Snowden's passport.
twitter.com
twitter.com
"Of course I expect the same from every other government with similar behavior."
I could have just given my phone to someone else to travel.
There's a lot less surveillance of travellers in the EU compared to the US.
I assume that only US entry/exit points "scan" US passports to determine whether a passport is valid or faked etc. (Or maybe European partners do too?)
But for entry and exit in most of the world, a foreign passport is just the physical object itself -- a foreign passport may be scanned, but just to record its details for domestic purposes, not to check its authenticity against any kind of international database. I assume that, in most countries, entering on a false foreign passport is a local crime, but do most country's laws or procedures say anything about foreign passports that have been "revoked" by the home country before their expiration date?
Though he wasn't deported to the US, but was held there for a few months, perhaps a year, before being allowed to fly to Iceland and claim asylum. That was arranged by chess friends of Fischer in Iceland, not Fischer himself.
No. Under the 14th Amendment, the government cannot forcibly revoke the US citizenship of anyone born in the US. See Afroyim v. Rusk, 387 U.S. 253 (1967): "Congress has no power under the Constitution to divest a person of his United States citizenship absent his voluntary renunciation thereof".