If they are married, and lived together any time after 6/30/09, they BOTH filed illegally. They can either BOTH amend to married filing separately (both would pretty surely owe), or they can amend one of the returns into a joint return (they might or might not owe) in which case both must sign the amendment and the other return will be cancelled.
FAFSA is rarely wrong on this. If your parents are married and lived together, they BOTH filed illegally, so they BOTH must amend. They can each amend to MFS--which means each of them will pay back the bogus EIC they claimed.
They can amend one return into an MFJ return (the IRS will zero out the other return) and pay back the excess refund. If they are low income, they had better pray the IRS doesn't slap them with an EIC ban for 10 years. If your parents are unmarried and lived together, only one of them could possibly have paid more than half the bills and the other must amend--if each paid half, they both must amend.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.