After reading this I just realized that the poor guys probably had to watch hundreds of hours of CCTV military content to sift the grains from the chaff. My condolences.
Actually it's not that bad... now imagine if an office worker is being hired with long tenure to do such job, doing material sifting 5x8 hours a week, gets a good monthly compensation for doing that, flexi time & location incl. WFH, with or without some prospect for career advancement. Many will enroll for that job if the pay is right. No one pays us here so of course we see such immense efforts as fantastic or a great ordeal... and certainly no one here is willing to spend such uncompensated time and effort like what he did
anyhow thanks to his works and his financial bearer, we all may get some early peek in that development. At the end, it's quite simple, with the right funding (the key factor), tedious tasks like this become feasible. Peter Wood has been in that institution for many years thus I consider it's a long tenure occupation.