When Sacco and Vanzetti were denied appeal and condemned to death , they ended their message to supporters with " La Salute è in voi " . Its invocation represented a power through threat of violence . Though there is no direct evidence that they had or used a copy , especially as a bomb was not involved in their case , detectives and historians have thought of the handbook as evidence of Galleanist conspiracy , such as when J. Edgar Hoover pursued a copy of the handbook when investigating the Wall Street bombing . After Sacco and Vanzetti , '' La Salute è in voi '' disappeared from public view , owing partially to its limited accessibility , based on its Italian language requirement , and limited topical interest . A 1979 presentation at the Boston Public Library 's Sacco and Vanzetti conference renewed interest in the booklet
Wall Street bombing
Wall Street bombing
La Salute è in voi