PUBLIC MARKS with tags women & back

The cringe factor is back in American politics. It suddenly doesn't seem all that long ago we were wincing over the significance of a stained blue dress; now, one finds oneself looking back on Mr. Clinton's proclivity for porcine young women with a certain nostalgia. Hummers, interns, cigars and ''I did not have sex with that woman'' suddenly seem almost respectable, even statesmanlike, compared with underage pages, Internet chats and ''do I make you a little horny?''