@gunstick Think each country has such legislation for jurisdiction and safety concerns. Germany as well.
Supposed they ask Deutsche Bahn, do you think they will also find heath or legal documents or emails about topics completely unrelated to travel in the correspondence? Like sexual preferences, applications, you name it...

@gunstick So they and their families can be blackmailed and put under pressure?

Our governments in Europe obey and capitalism does not care at all. We are the vasalls of USA. Biden was putting war over Europe by denying a clear position to stop expansion of NATO direction Ukraine.

Everywhere in the world US creates conflicts to stabilize their own power.
It seems to get worse over time.