There is a mass of independent evidence which says the bulldozers were burting bodies and destroying houses "crime scenes".
Neither Fisk nor Siegel reported any such thing, except for those buildings at the Southern edge of the camps.

"No-one could observe into the narrow maze of streets in the vast sprawling camps from there"
The Israelis, as have all active troops, were equipped with high-powered state-of-the-art viewing equipment - they'd have to be totally myopic not to have noticed the systematic and brutal slaughter
Not from a mile outside the camps Jim, but Ellen Siegel made the same mistake in believing it to be possible.

I hope I have answered all you points, but you were a bit incoherent in places.
No shame in that. It is an awful subject.