I found a quote from Gary Webb that might be a valid answer to my question 2 here:

"If we had met five years ago, you wouldn't have found a more staunch defender of the newspaper industry than me ... I was winning awards, getting raises, lecturing college classes, appearing on TV shows, and judging journalism contests. So how could I possibly agree with people like Noam Chomsky and Ben Bagdikian, who were claiming the system didn't work, that it was steered by powerful special interests and corporations, and existed to protect the power elite? And then I wrote some stories that made me realize how sadly misplaced my bliss had been. The reason I'd enjoyed such smooth sailing for so long hadn't been, as I'd assumed, because I was careful and diligent and good at my job ... The truth was that, in all those years, I hadn't written anything important enough to suppress..."
- Gary Webb
Into the Buzzsaw: Leading Journalists Expose the Myth of a Free Press.
Borjesson, Kristina (Ed.) (2002).
Includes chapter 14 by Gary Webb.