My mom worked at DHS for a number of years. She's more conservative than I am, so it's worth noting that they gave her a caseload of some of the tougher cases.
At any one time, she was carrying 400-600. She used to figure that 75% of them were gaming the system to one degree or another. Problem was that management WANTED clients (more clients = more 'helping' (read: power) = more money). So, there wasn't any interest in stopping the fraud.
Though, she did take real pleasure in catching her clients "double dipping" - collecting benefits AND working. Happened a couple of times a month. It was a no-no even the top brass disapproved of. She said that the double-dipping clients were always so amazed to see her, like she'd never show up at a local retailer, or a grocery store, or a restaurant, etc etc etc. I guess in their little world, she always sat in her office, behind her desk.
She tells the story of one young, naive, smart auditor who used check up on clients by looking in the parking lot for those who were driving Cadillacs, BMWs, Mercedes, etc. He was quickly gotten rid of.
Your tax $$$$ at work.
I personally have seen people sort through a selection of 5 or 6 EBT cards to make sure they picked the right one to match their ID to but at least $1000.00 worth of goods using 4 different cards at Wal Mart at 12:05 AM the day funds transferred
Outside I noticed they were driving a bright new and shiny 2011 Ford Excursion full size SUV 4X4 totally optioned out with leather interior and expensive high end mag wheels and tires - wearing Sonora, Mexico license plates.
I'd call that the Super Bowl of gaming the system, or at least the Final Four