K. J. Halliwell (September 25, 2005 -- Revised October 1, 2008)
As you can see, the analysis image shows the prominent forward antenna mast superimposed (at approximately the correct scale) where some claim the missing mast vaguely appears. Additionally, the missing forward deck house and AN/SRR-20's SHF antenna are shown. If you compare this marked-up image with the purported gun camera image in Mr. Cristol's book, The Liberty Incident, you will see that they look similar. The forward mast that is a prominent feature in Cristol's image is now a prominent feature in the marked-up IDF History Report image, but objects that should be hidden by the antenna mast are not hidden. Clearly, if the antenna mast is anywhere to be seen, it cannot be where some people claim it vaguely appears.
Of course, the truth is that the prominent forward antenna mast is missing because the ship in the image is not USS Liberty. Any vague impression that the mast can be seen is without merit (i.e., wishful thinking), as shown herein.