Oh, right. It wouldn't. In absolutely no way would rigid, privacy-invading identification card standards prevent a known person from boarding a plane carrying liquid explosives. Or non-liquid explosives. Or weapons of any type, except maybe a shiv whittled from a non-Real ID-compliant identification card.

The base problem is that Real ID did nothing to ensure that the cardholder is the person identified by the card, yet it gives great credence to a cardholder.