The book:
Air Photo Evidence – World War Two Photos of Alleged Mass Murder Sites Analyzed,  By John C. Ball – 3rd, corrected and greatly expanded edition, January 2015
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https://www.youtube.com/watch?v=XBGH5c1rUsE

Photographic evidence vs the holocaust

Published on Jan 21, 2018

Aerial photo interpreter John Ball discusses the the disconnect between the holocaust story and the real photo evidence.