Thanks for the response. However, I would imagine that TurboTax would at least inform me of this issue (it is a big amount). I give TurboTax all information it needs to figure out that I should not have got an exemption and I should have paid those taxes. Unless I'm exempt, my W2 should not have those FICA boxes blank. TurboTax also asks me a lot of questions to get clarity about my tax situation. I'm not saying that it should amend it, but at least it should tell me that it sees a problem and ask me to confirm the same. My taxes were accepted by IRS, not sure why they didn't pick it up either, as I mentioned it is not a small amount. That lead me to think that TurboTax might have taken care of it.
