would be delayed until at least 2011. On 9 November 2012, Stephen Conroy shelved the proposed mandatory filter legislation in favour of existing legislation, touting that it was successful in compelling the largest ISPs to adopt a filter. As a result, 90% of Australian Internet users are censored from accessing some web-based content. The Liberal/Nationals Coalition In February 2009, then opposition communications spokesman Nick Minchin obtained independent legal advice confirming that a mandatory censorship regime would require new legislation. In March 2009, after the ACMA blocklist was leaked and iiNet withdrew from the filtering trials, he stated that Stephen Conroy was "completely botching the implementation of this filtering policy". In March 2010, shadow treasurer Joe Hockey attacked the filter, saying "What we have in the government's Internet filtering proposals is a scheme that is likely to be unworkable in practice. But more perniciously it is a scheme that will create the infrastructure for government censorship on a broader scale". During the 2010 Federal Election, Liberal communications spokesman Tony Smith announced that "a Coalition government will not introduce a mandatory ISP level filter", with Joe Hockey also announcing an intention to vote against the policy if Labor is re-elected. This followed the 2010 Federal Conference of the National Party passing a motion proposed by the Young Nationals to "oppose any mandatory ISP-level internet censorship". In November 2012, Coalition Communications spokesman welcomed the proposed legislation being dropped as it endangered freedom and Internet performance. However, some Coalition members voiced concern, citing support for a mandatory filter to protect children and families but will not propose it citing lack of political support at the time. The Coalition have proposed an "eSafety commissioner" to take down undesirable content from the Internet as a means to protect children. It was met with criticism as a duplication of current government efforts and "difficult and expensive" to implement. In September 2013, two days before the federal election, the Coalition announced they would introduce an opt-out filter for all Internet connections, including both fixed line and mobile devices. This has since been retracted as "poorly worded" in a statement from Malcolm Turnbull, who said, "The correct position is that the Coalition will encourage mobile phone and Internet service providers to make available software which parents can choose to install on their own devices to protect their children from inappropriate material." The Greens The Greens do not support the