[1) Is there an obligation to report things? and if so,
2) How do they get reported?]
I don't know if there is a legal obligation for sure or not, but most likely more of a moral or ethical obligation - each person has to make that decision for themselves...
If reported there would probably be an investigation and be found to be within the rules or not.
SSI fraud reporting- info links list -
http://www.google.com/search?q=SSI&i...8733203d1b4e27