National Geographic : 1961 Jun
Typists daily process some 21,500 new sets of fingerprints at the FBI Identification Division. Its growing files now hold 159 million sets-the world's largest collection-received from civil, military, and law-enforcement sources. 872 Name card and fingerprints serve as a cross in dex to a man's identity. His prints are classified and filed according to his finger-tip patterns. If stacked, the cards stored here would rise 90 times higher than the Empire State Building.