The more you turn down things, the more difficult it becomes to feel that the next one will be right.
You speak into it and everything is recorded, voice, tone, intonation, everything. You turn a little wheel, and forth it comes, and can be repeated ten thousand times. Only fancy what this suggests.
I know a lot of reporters certainly will go to jail to defend confidential sources. Some have even gone to jail for an issue like this. But I can't say that's the norm.