I read that many of you like to crack out coins in old holders and resubmit them for higher grades. Some of you even keep resubmitting them to the same or different TPGs until you get a higher grade you like. Doesn't this then affect and inflate the population of certified coins, which then has an effect of lowering values via supply and demand? So, if I buy a 1916-D Mercury dime slabbed as VF-35 in an old green holder by PCGS, crack it out, and resubmit it to them where it is now graded XF-40, it still has that same coin recorded as both a VF-35 and now also an XF-40. This isn't right and skews population numbers and values. It led me to wonder if there was a way the TPGs could create a uniform "Coin-Recognition Technology" just as they have "facial recognition" or "fingerprint recognition" technology. I am former law enforcement. The technology is possible. Facial recognition can bypass changes in skin tone from tanning, bruising, and things like differing haircuts, wearing hats, balding, adding or removing of warts, moles, tattoos, and whether people are seen smiling, laughing, yelling, and even yawning. Fingerprint technology can even recognize and match prints (even partial prints) that have developed scars or malformations over time from original photos without them. All the big TPGs take photos of coins they grade. Couldn't the same process be done to recognize bag marks, nicks, scratches, levels of strike quality, wear of high points, and other imperfections? Certainly someone wouldn't purposely add a bag mark or scratch to avoid detection that might reduce a coin's value, and like fingerprint technology, if so many other factors are still the same (like level and location of wear) it is unlikely it would be fooled. And like fingerprint and facial recognition, toning over time wouldn't affect it being identified as an exact match. The TPGs could share such technology and the database the same way various law enforcement agencies do with prints. I feel this could help protect the integrity of our hobby, specifically the population stats - and thus the value - of higher grade coins. It could also detect coins that have been previously submitted and determined as counterfeits. What are your thoughts? Again, this technology IS possible if it can be done with prints and even partial prints (as well as faces) already.