Obviously that's one of the reasons we have scrutineers at polling stations: we think they are more likely to recognize.... Parties are allowed the right to scrutineer because we think people will have an opportunity to see if there's fraud occurring.
Some people can remember faces better than others, that's absolutely true, but if you can't see the face, there is no chance of doing that. You could say they're wearing the same Halloween mask as the guy this morning, but if you take away that element, that opportunity for fraud, it's less likely to occur. That's what we're reducing here--an opportunity for fraud.