00:00This job literally erased your fingerprints, and no one noticed for decades.
00:04In the 1970s, newspaper presses ran scorching hot.
00:09We're talking over 300 degrees Celsius.
00:12Typesetters worked daily with molten lead and brutal friction.
00:15That combination permanently reshaped their fingerprint ridges.
00:19Dermatologists actually gave it an official name, Occupational Dermatoglyphic Alteration.
00:25It wasn't just printers either, potters, surgeons, rock climbers.
00:29Same effect.
00:31Forensic scientists now keep a formal list of jobs that can erase your prints.
00:35Here's the wildest part.
00:37In 1987, a retired typesetter became a cold case suspect.
00:42His altered prints couldn't match old records.
00:44He was cleared instantly.
00:46That single case forced Interpol to rewrite its fingerprint matching protocols entirely.
00:52Your job could literally change your identity.
00:55Follow for more mind-blowing facts every day.
