Should I promote good or bad news?

Hi,

I have the following question.
With the advent of the internet such as blogs, social media we have the power to promote different media.

Should one use this great media resource to promote good things e.g. a person from your country won a competition or spread 'bad' news e.g. Person X did a bad thing so awareness should be raised?

I am undecided on this issue. Does Catholic theology or the Bible have an answer to this question?

If no what is your personal opinion.

Thanks in advance.

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