China's Pollution Problem: Beijing Scrambles to Host 'Green Games'

China's Pollution Problem: Beijing Scrambles to Host 'Green Games'

Smog, dust particles, algae blooms: the high levels of pollution at Olympic venues has the sporting world worried. The Chinese authorities are working feverishly to address the problem -- closing factories, banning cars from the roads, and renewing promises of "green games." But will it be enough?