Just read every issue! So many cunning tales of tradecraft, such as the infamous "Haversack Ruse" ;) https://www.cia.gov/resources/csi/studies-in-intelligence/

Just read every issue! So many cunning tales of tradecraft, such as the infamous "Haversack Ruse" ;) https://www.cia.gov/resources/csi/studies-in-intelligence/ https://www.cia.gov/resources/csi/studies-in-intelligence/