It seems to be tied to the fraud/looting being committed using Somali illegals, and the seriousness of the Feds suggest there is something deeper contributing to the focus on Minneapolis, probably involving those behind the Somali operation.
https://grok.com/share/c2hhcmQtMi1jb3B5_eb796331-49e0-4e43-974b-4def00e2ae89