Can you stop children accessing porn?
The government is to consider putting extra pressure on computer users to filter out pornography when setting up internet accounts.
Ministers are suggesting that people should automatically be barred from accessing unsuitable adult material unless they actually choose to view it.
It is one of several suggestions being put out for a consultation on how to shield children from pornography.
Jim Reed reports for Newsnight on whether the government will be able to prevent children from accessing online porn.