The Travelers live mostly in enclaves in the East and hunker down during the winter months and live relatively good lives. After winter ends they spread out across the nation to commit their crimes and bring back the loot to the family during the winter. I don't think they are drug users though, as that might bring too much heat on the group.
Winter is coming soon and the Travelers will be headed back to the East, to rest and get ready for next year's attack on America. They remind me of the maurading hordes of Europe of ancient times who would rest in the winter and loot and pillage in the spring and summer.
The original assassins had a castle redoubt near Teheran. About the 11th century. It was impregnable for a long time. From this fortress assassins would be dispatched who were able to make great changes via strategic assassinations.
Their game ended when Mongol invaders finally stormed their castle. Their leader was kicked to death.
ANOTHER TIDBIT: Was reported that authorities in Indiana are looking into the family's finances. Not too unusual when mom (and scammer dad) wants the child back that's in state custody.
There must be a division of labor that's proven successful down the years. Their women take care of certain scams and the men take care of others. The men take the boys on their journeys to show them the ropes on roofing scams etc. They take the boys out of school and the truancy officers can't sort out the mess in such a closed community with so many people having the same legal names BUT with plenty of nicknames.