Best of the Week - 20th July 2012

Highlights from Radio New Zealand National's programmes for the week ending Friday 20th July. This week...an interview with two of the four people convicted on firearms charges, following a twelve month police surveillance of `military-style' training camps in the Urewera bush....and the controversial police raids in 2007........ we hear from New Zealand businessman and philanthropist Owen Glenn......... the work and life of the mathematician who beat odds of a trillion to one to create the enigma code during World War Two, who'se also hailed as the father of the modern computer..... designers of an umbrella that may be able to cope with Wellington winds at their worst........and author Author Witi Ihimaera takes a trip to Mars.