Kerik withdrawls

So Kerik has withdrawn already from his nomination to be homeland security chief. The reasons given were problems with the immigration status and tax payment to his nanny. I just have to say that after all the trouble that has come up over failing to pay taxes on a nanny, it seems incredible that this problem would only come up now. I'm sorry, but this sounds like cover for some other, probably more serious, problem with the potential confirmation. We'll have to see as events develop and will most likely never know the full story, but this certainly seems odd.