Teaching 4-year-olds about gay relationships. Right or wrong? #BBCNolan

'Preschool children should be taught about gay relationships to combat future homophobia in society' - so says gay-rights charity - Stonewall. Chief executive Ruth Hunt has said that they to commission books "celebrating difference in all its forms for under-5s". Would you welcome this in the schools of your children? Peter Lynas from the Evangelical Alliance and John O'Doherty from the Rainbow Project debate