[Oatka]

In my dream world, a visa would require a thumbprint, and then its data goes into a computer. Every 30 days said computer spits out those that have expired and arrest warrants issued.

[lajefa]

Living your dream. Currently, applicants give ten prints that are matched against databases. If the applicant later has a law enforcement encounter that is reported back and the visa can be canceled if warranted.

[Buckeye McFrog]

In my dream world, a visa would require a thumbprint, and then its data goes into a computer. Every 30 days said computer spits out those that have expired and arrest warrants issued.

I know a guy who studied abroad in Denmark. That's pretty much how his student visa there operated.

[rxsid]

"Every 30 days said computer spits out those that have expired and arrest warrants issued."

Exactly.