Simpson garnered significant media attention in 2003 [6] when he announced his intention to build a DIY cruise missile for US$5000 using only "off-the-shelf" technology, mostly purchased from eBay and other online stores.[7] The purpose of the project was to prove the point he made in an article published on 20 May 2002 that a cruise missile can be built with off the shelf technology and knowledge available to the general public.[8] Simpson states on his FAQ page that he is not developing a new technology or creating a new threat, but creating awareness of an existing threat with the hope that it will stimulate research into an effective defense.[9]
The project was put on hold when Simpson was adjudged bankrupt after a prosecution by the New Zealand Inland Revenue Department.[10] Simpson claimed that the prosecution was politically motivated, as it was the only legal strategy available to the government of New Zealand to stop his work. A documentary which aired in April 2004 explored the events surrounding his prosecution.[11] Simpson resumed and completed construction of the prototype cruise missile. His website claims that the missile is in "safe hands" somewhere in New Zealand, in a location unknown to him. Simpson says that not knowing the missile's whereabouts is a legal strategy intended to prevent his prosecution while it is tested.[12] Simpson also claims to be halfway finished with completing a second cruise missile which he intends to donate to a museum or educational institution.[13] He stated an intention to release a book about his experience with the development of the missile, the media interest in 2003, and the reaction of the United States and New Zealand Governments to his announcement.[14]