Senator LAMBIE (Tasmania) (14:41): Mr President, I ask a supplementary question. I note that the minister still prefers to target pensioners for tax increases rather than his mates in big business. Is the finance minister aware of a particular type of financing trading company which is usually co-located in or near stock exchanges that, by the use of super-computers and sophisticated software, are able to skim billions in profits from ordinary retail investors? If so, would the minister agree that this sort of company using high-frequency trades would be a good candidate for a financial transactions tax?