Pollution: West Virginia residents fear water is unsafe

It's been almost a month since residents in the city of Charleston first learned their water had been contaminated. A chemical tank located near the river running through West Virginia's biggest city began leaking a sticky substance used for processing coal. Public health officials have now flushed the chemical from water supply but residents still fear their drinking water isn't safe. Al Jazeera's Kimberly Halkett reports from Charleston in West Virginia.