China to Test Drone's Smog-Clearing Powers

China is taking its chemical war with smog to another level. Government agencies in China hope a newly designed drone can help mitigate air pollution. The airborne vehicle will spray chemicals that freeze pollutants, thereby knocking them to the ground. This tack begs whether it is advisable to have pollution snowing on people from above -- but hey, at least the sky won't be so unsightly. The tests, to be spearheaded by the China Meteorological Administration, will take place later this month at ports and airports.