Why pensioners are still protesting in their seventies

Adelaide writer Margaret Merilees has spent her life protesting: from Pine Gap in the 1980 through to the Rising Tide protests against coal exports, to joining Extinction Rebellion and protesting SANTOS' support of the Tour Down Under bicycle race. Now she's written a collection of essays reflecting on the issues she's fought for, why people in their seventies are as determined as ever, and why younger generations need to know whose shoulders they are standing on.  

• Guest: Margaret Merrilees, author of Scared Angry Laughing - how to fix the world, published by Pink Shorts Press.
• Producers: Ann Arnold and Catherine Zengerer