The worst crime in the 1950s?
Well, if they're breaking into mailboxes, I guess so. And doubly so if those are government checks they're stealing!
Disquieting bit: the Secret Service has "enormous master files of handwriting in Washington"?!?!? Really? Do they still? Just crooks' handwriting--or everybody?!?! When you cash those government checks, do they actually keep the canceled checks with our signatures on them for future comparisons?
From Lawbreakers #8 (1952)