Party Crashers

It is apparent that a couple wannabes crashed the state dinner the other night. And it got me to wondering how it was that a little old lady was tossed by the SS at a GWB campaign appearance for wearing a tee shirt expressing an opposing view and this unauthorized couple gets in to shake hands with the Prez? How exactly is that? Hell, nut jobs show up when the Prez has an appearance with a gun holstered and the SS ain't got a problem with it. Sheesz!