What news or information sources do you use--that you consider reliable?

I already answered this one. Please read the thread.

and HOW do "We now know that that" Arafat did not "walk away"...etc?

Bill Clinton says so in his book, My Life, and before that, some of the other high level negotiators in that process have said so.

Which peace negotiations did—NPR? PBS? Which? Or both?—say Arafat walked away from, the Madrid Conference of 1991, the 1993 Oslo Accords, or the 2000 Camp David Summit?

Camp David (2000) and Taba.

You asked for an example. I provided one. It's a big one, because all of the people on the public broadcasting networks did it when the subject was being discussed. And it's one that was ongoing for a very long time (years, and may even still be going on). If you can't refute this one, why are you asking for others?

Yes, I have stopped watching and listening to the news on the public broadcasting networks, for the most part. From time to time I will check in to see if anything has changed. Every time I do that I find that they have not. I don't keep a log of the lies when I hear them so that I can come here and list them for you. I used to value the public broadcasting networks' news programing quite a lot. I don't value it at all now. The reason is because they lie.

I'm not telling you that you shouldn't watch them, nor that you should agree with me. You are entitled to your opinions. I am entitled to mine. You have voiced your opinion on the subject. I am voicing mine.