The retro-scope appears to now be part of the investigative procedure for any incident that has political implications. Because its time-horizon goes about -10 years (with some blurry images back to -20 years) the entire current crop of politicians grew up in a time before retro-scoping existed, so they do not fear the ‘scope, nor do they fully understand it. They will.

I did a google image search for “retroscope” and look at this beauty!
