@PUNKEY,
PUNKEY wrote:
You don't give the context for your question, but "Why is this news?" can mean:
Why is this information that has not been heard before ?
I disagree, you'd never use
Why is this news? in that context. You'd say
Why haven't we heard this before? You would use the phrase
Why is this news? to either question the newsworthiness of an item, say celebrity gossip, or question an item that's pretty much common knowledge anyway, like sugar causes tooth decay.
You really should not be giving advice on grammar, you just end up confusing people. Stick to advising those people who think their partners are cheating on them. That way you won't be able to do so much damage.