Interesting. I was curious to find out what jurisdiction the suit was filed in, unfortunately OP's link does not say. Hunting around, I found a link to a FOX news article that has a copy of what appears to be the filing paperwork on its front page. This was filed in US district court in New York. I am curious to see how the international politics of foreign based banks being sued by an arm of the US government in a US court plays out.
The FOX article:
FDIC Sues Banks Over Rate Rigging | Fox Business