Why hasn't it been gov/lawmakers that investigated?

>In eight states, Deloitte secured multi-million dollar deals based on promises of powerful anti-fraud tech and secure, scalable telecoms infrastructure. In a presentation to the Kansas Department of Labor, in which it claimed to have prevented $100 billion in pandemic unemployment fraud, Deloitte touted “advanced AI-driven fraud detection,” as well as “identity proofing” to help “prevent unauthorized activity,” technologies that had been deployed across U.S. states for over a decade....According to local government data, in states where Deloitte was either asked to help prevent fraud, provide security or ran the benefits system, there was as much as $22.2 billion in fraud.