USCIS is looking for the immigrants so that they can remove their green card status. Worst case scenario, I'm seeing deportation in some immigrants future.
Why....so much time has passed? The immigrants have their green cards. Can't we let bygones be bygones?
The law says anyone who fraudulent receives some immigration benefit (green card, citizenship, etc.) can have it taken away. For example, if you marry someone to get a green card and later on divorce them. Later you re-marry and help that person get a green card. All could lose their status.
Best course of action if you are tempted to marry to get a green card -- Just don't do it!
Feds: Texas green card scam was all in the family | Houston & Texas News | Chron.com - Houston Chronicle.