42 CA Children Infected With Severe Hepatitis: The Golden State is investigating an outbreak of mysterious liver inflammation in children as cases spread throughout the nation (patch.com) posted 2 years ago by xleb2 2 years ago by xleb2 +42 / -0 15 comments share 15 comments share save hide report block hide replies
Correct if they genuinely don't know they say nothing, because it leaves them open to libel/slander laws.
If they have a vague idea they'll list through every possibility like it's a top ten. This is why they sound like opinion pieces. (They are)
Then they have the unknown/mysterious/vague term use. They know and can't say (legal) or know and won't say (societal).
Or my favorite from 'fact-checkers'
'We have not seen any evidence' when they haven't looked