You remind me of someone I know.
He also claims that the world is full of greys but then he goes on to present it in his own version of black and white.
Take this example that you use to bolster your argument:
http://www.tfproject.org/tfp/showthread.php?t=87571
I read through the entire article and from what I read, nothing changed my mind as to rightness of our actions in the 80's and 90's.
Yet to you, it is clear evidence that we were lied to by Bush.
What I suggest is that you have your version of the "truth", but it is really just your own perception colored by your experiences.
Once we realize this about ourselves, then we can truly move forward with reasonable debate.
Until then, I decline being drug into a useless argument where we cannot even read the same article and get the same information.
As to "walking the line", what I meant was that the thread is/was degenerating as usual with partisan politics, sniping, etc. and that if it continues, the usual warnings, bannings, blah blah blah.