The Rainbow Warrior trial - the case linking the French Secret Service to the mining of Greenpeace's ship - begins in Auckland this week. At the centre of the controversy surrounding the case is the outspoken New Zealand Prime Minister, David Lange. He has condemned forthrightly France's violation of New Zealand's sovereignty. Earlier this year, the USA found him equally uncompromising when he announced their nuclear carriers would not be welcome in New Zealand. Lange is a Methodist lay preacher who says that what he does in his political life is a reflection of his Christian convictions. This Everyman profile records his first meeting with the man whose preaching changed his life - Lord Soper. In a conversation filmed earlier this year, they discuss the choice confronting a politician between compromise and conscience.