We all got a chuckle from the story that the Secret Service let illegal aliens in to clean Chertoff’s house. But the take-home point is this, from today’s Washington Times editorial: “if the system can be fooled by a house cleaner, it can be fooled by a terrorist.” As the original Post story noted: “The Secret Service uses workers’ ID information to conduct security checks, not immigration checks.” But it’s a PC fantasy to imagine that we can know who someone is without knowing whether or not he’s an illegal alien.