I don't know how your post has anything to do with WMI? Companies get sued all the time. If WMI shareholders have an issue with the seizure of Wamu they should sue the FDIC.
The examiner has already determined that would be fruitless. Senate hearings have already determined the bank was writing bad loans in the billions.
Wamu was in the toilet when it was seized. Read the examiner's report. I have.