'Is the same thing going to happen again?'
Media playback is unsupported on your device

Brazil's mining dams: A disaster waiting to happen?

BBC science correspondent David Shukman visits dams in Itabirito, and Rio Acima, exploring the possibility of a future disaster.

This video has been optimised for mobile viewing on the BBC News app. The BBC News app is available from the Apple App Store for iPhone and Google Play Store for Android.

  • 08 Feb 2019