Currently, the Kariba dam is the one most likely to fail:<p><a href="http:&#x2F;&#x2F;citizen.co.za&#x2F;820414&#x2F;kariba-dam-a-ticking-time-bomb&#x2F;" rel="nofollow">http:&#x2F;&#x2F;citizen.co.za&#x2F;820414&#x2F;kariba-dam-a-ticking-time-bomb&#x2F;</a>