Senator CONROY (Victoria—Deputy Leader of the Opposition in the Senate) (14:46): Mr President, I ask a further supplementary question. I again refer Senator Brandis to Mr Shepherd's column, which outlines the unequivocal benefits of building our future submarines right here in Australia. In Mr Shepherd's own words: 'Our next-generation submarines should be built in Adelaide'. Minister, when will this government heed the advice of its own experts and keep its promise to build 12 submarines in Adelaide?