Q&A: UK filters on legal pornography

Image caption, Britons will have to make a choice about whether their net connection is filtered

Prime Minister David Cameron has announced that UK internet service providers (ISPs) will be putting pornography filters on domestic internet connections.

The speech is the culmination of a long campaign by the government to get ISPs to impose default filters for adult and sensitive subjects. But what will the changes mean in practice?

Image caption, Net savvy children may be able to get round the filters, warn critics