Senator BILYK (Tasmania—Deputy Opposition Whip in the Senate) (14:22): Mr President, I ask a supplementary question. I again refer to Mr Turnbull in December 2013 when he said: ... all forecasts in the Strategic Review ... are both conservative and achievable. Yet leaked internal nbn documents show the cost per home for rolling out this government's second-rate copper NBN has nearly tripled, from $600 to $1,600. What is conservative or achievable about this outcome?