Khat is banned around the world, but not in the UK. Now there are fears this herbal stimulant could cause lasting damage to a community in Wales.
Catch the full programme on Wales This Week, Monday at 8pm on ITV Cymru Wales
More top news
In the second of our special series Welsh education: Making the grade? we visited Bishop Hedley High in Merthyr Tydfil.
More wintry showers will continue overnight and a yellow warning of ice has been issued for central and eastern parts.
Swansea Dry Dock says it's missed out on a number of contracts to dismantle warships because they've gone elsewhere.