Ethics of Jornalistic Writers

I read three articles about the ethics that jornalistic writers should follow, and they are quite useful and inspiring.
The jornalistic writers should be responsible. Unlike other professions, they have three clients at the same time: the employer, the reader, and the interview subject. Among them I think the reader should be considerer the most important. And that's why we need to report the truth.
As Roy Peter Clark said, the line between fact and fiction is blurring. However, nonfiction writers still need to stick to the principle that do not add or deceive. And Clark raised many tips for that like "be unobtrusive" and "never put anything in your story that hasn't check out". I agree his opinion about the use of interior monologue. In journalistic essays, interior monologue is sometimes acceptable, as long as it's based on real interview, and can indicate the real thoughts and opinions of the figure.
Another part of the ethics is the writers relationship with their interview subjects. In all circumstances, we need to consider our subject's feelings. A writer need to ask if he can include the off-the-record materials, and if he doesn't do so, he might get into trouble with the law, and probably hurt the interview subject. Sometimes it's reasonable to cover some fact to protect people by changing the focus of the report, but not by changing the truth, of course.