The 1998 winter Olympics are about to kick off in Nagano, Japan. But in Athens, Greece, all eyes are on 2004. Athenian planners promise the games will be a success. But the noxious pollution cloud known as NEFOS (NEFF-os) might get in the way. This blanket of smog that hangs over Athens much of the year is at its worst in summer, when the games are to be held. And it's just one of several environmental problems the Greeks face as they prepare to turn Athens into the "city of the century." Alexa Dvorson reports.