Hmm. My first reaction is that he's naive. What is truth? We think we know. But any kind of editorial decision -- and news coverage is born of editorial decisions -- involves judgment and viewpoint.
I have a sense that whatever he himself is feeling at the time will become truth in his mind. If he executes his vision with passion, it might produce fine work. But it will be his truth. Not objective truth (which is a highly elusive and sometimes unavailable thing.)
My second reaction is that he's going to want somebody to pay him for pursuing truth and honesty. And that person is likely to have commercial reasons for some of the things he or she demands of him.
I wonder if he'll enjoy his work and prosper, or become disillusioned and bitter, as he pursues a career in photo journalism.