Aerial bug spraying in NW Harris Co.
Published On: Aug 22 2012 10:23:36 PM CDT
Updated On: Aug 22 2012 11:30:20 PM CDT
Aug. 22, 2012: More than 60,000 acres in northwest Harris County were sprayed by air to fight West Nile virus, but some people are worried that it could cause health problems. Ryan Korsgard reports.