America can afford a jatrillion dollars a month for TSA, INS, Customs lunatics and DHS, the FBI, the CIA, and god knows what other black box sub orgs with inscrutable power.
Sweden has a limited population and comparatively limited economy. If the best use of national money is not to create four hundred security agencies to make sure we're all wiping south to north instead of north to south like here, then monitoring information is the next best thing, unfortunately.
It is a matter of practicality more than of principle. They are still charged with doing what they can to provide safety to their populace.
The possibility for abuse is certainly there; then address that instead of throwing the baby out with the bathwater and having nothing at all in place.
What I would question is this: Sweden, do you have an unreasonable search and seizure clause and does this provide an exception? If it does, you are violating your constitution and should change it. If people therefore elect not to be citizens of Sweden, then you have made your bed and you should sleep in it.
I see bed people.