How to cope as a long distance grandparent

What's the impact on grandchildren and grandparents when adult children decide to move abroad? Jane Garvey talks to a listener whose son and daughter-in-law have decided to leave the UK for a new life in Auckland, taking their three young children with them, Helen Russell, British mum and author of Leap Year who lives in Denmark with her husband and young son, and clinical psychologist Dr Angharad Rudkin from Southampton University.