From humble beginnings in a tiny town whose name means "deep drainage ditch", electrical engineer Ren Zhengfei grew his company Huawei into a global technology giant, delivering competitive telecommunications equipment at low prices.But when Australia accused Huawei of being a security risk, a snowball began to roll which led to arrests, hostages being taken, and pure white hot fury in Beijing.This is the story of how a decision made in the midst of a Prime Ministerial spill may lead to a new technology cold war.Guests:Sue-Lin Wong, China correspondent, The Economist and co-author of The Beijing Bureau: 25 Australian Correspondents Reporting China's RiseMalcolm Turnbull, former Australian Prime Minister