In 1918 , documents from the APL showed that ten percent of its efforts ( the largest of any category ) were focused on disrupting the activities of the IWW .
At the height of its power the APL had 250,000 members in 600 cities .
In 1918 , documents from the APL showed that ten percent of APL 's efforts ( the largest of any category ) were focused on disrupting the activities of the IWW .
At the height of its power the APL had 250,000 members in 600 cities .