Dear Science: June 27, 2018

Today on Dear Science with AUT's Allan Blackman:

- We discuss the ethics behind the right-to-try federal law in the States, which allows drug makers to sell their yet unproven therapies to dying patients. 

- The biggest, most powerful computer ever built

- And the saddening death of Koko, the 46-year-old gorilla who knew how to communicate with humans through sign language.