What is this?  This picture almost speaks for itself.  During the
process of computer enhancement, a very visible double-pixelation on the
side of the Mexico City UFO appeared.  It is in such a position that it
might actually be blocking or covering something underneath it.

        If you look closely at my earlier 'Starburst' enhancement of a
frame from the video you can identify this exact same
blocking pattern!  It is outlined by a perimeter of reddish pixels which
'frame' the area in question which appears blue.  In this newest treatment,
I have highlighted the 'blocked' area of the UFO in yellow for easier
visual indentification.

        Important:  I'd would also like to note that in none of the 16
Mexico City UFO pictures that I have worked on to date have I used
'embossing' as a technique or enhancement tool at any time during my
analysis.  In every single frame - all 16 - the UFO carries this identical,
strange dramatic 'block' or covering on it...which just might be there to
mask or hide something. But what?

        So far, I have not been successful in identifying what might lie
underneath this pixel block but its presence raises a great deal of
suspicion and speculation.  My research continues.