...Think about the Kerik example: The man and his wife have two small kids.... A nanny offers that help, and she seems both nice enough and gets along with kids. Whether or not she's "legal" seems less important to most American parents than whether she's trustworthy and hard-working. As for the nanny, she's traveled hundreds, if not thousands, of miles from home to make some money and get ahead. Her primary concern isn't running some Immigration Service gantlet but is to find a good family that pays decently and treats her well. Are we really supposed to believe that this...