More seriously, who uses public internet terminals for anything? I would never log in from one.
I would (and admittedly not very carefully) use a public internet connection with my own laptop. If I was carrying state secrets, I'd hope that my state would have given me a very well-configured laptop which would just use the public internet for a VPN, and would allow no DNS or anything else to be consumed from the public resource.
Spying on officials is not just to get state secrets. It is used also to discover any information (maybe embarrassing, or just private information) which can be used as a leverage in negotiation or, in more severe cases, as a plain old black-mail.
That's funny. If the USA asks the Belgian government to jump, they only ask "how high?".
A small example: all international bank transfers within Europe (through SWIFT, located in Brussels), are all sent to the USA. Because they need that stuff to catch terrorists. Apparently the US can (and have) even interceped money.
This used to be true but I do not think it still is. SWIFT opened a data center in Switzerland for the express purpose of not having to send internal European transactions to the US. They could be lying of course and still be doing it.
More seriously, who uses public internet terminals for anything? I would never log in from one.
I would (and admittedly not very carefully) use a public internet connection with my own laptop. If I was carrying state secrets, I'd hope that my state would have given me a very well-configured laptop which would just use the public internet for a VPN, and would allow no DNS or anything else to be consumed from the public resource.