If they do so knowingly, and harm is caused, then yes. Are you suggesting we should give them a pass from years of acquired jurisprudence simply because they hold a particular title?
And what institution gives out the licenses for journalists and scientists? Is it revokable?
You honestly think Google is intentionally giving wrong answers??? Google would love to have a perfect oracle that never makes mistakes! Maybe German courts can conjure one up.
The danger there is that the government will demand access to a journalists sources. "Leak reports Area 51 has aliens!" "Oh yeah? Prove who told you that or we'll arrest you for lying"
Or selectively. "Vaccines cause autism!" "Okay" "Vaccines don't cause autism!" "Prove it beyond a reasonable doubt or we'll arrest you for lying"