Agent Orange is a chemical that was used extensively by the US during the Vietnam War to destroy vast tracts of jungle.
It can result in a number of serious side-effects for those exposed to the chemical for prolonged periods of time, including birth defects and even death.
Now it has been revealed that Agent Orange was used on vegetation in Canada's Ontario province from the 1950s to the 1970s.
This has prompted the Canadian government to open an investigation into the use of the chemical.
Al Jazeera's Zeina Awad reports from Barrie in Ontario.