Best of the Week - 22 May 2015

We hear from Sarah Chayes an expert in kleptocracy, anti-corruption and civil-military relations and author of 'Thieves of State: Why Corruption Threatens Global Security' speaking on Saturday Morning, from Nine to Noon two Wellington medical researchers who are preparing the ground for clinical human trials for their promising cancer immuno therapy, our Spectrum documentary this week takes us back 50 years to the construction of the Benmore Dam, we find out asbout a 70s photo exhibition and a new documentary on social housing, This Way Up explores age prediction websites and more.