Under the content filter there are, Log, Block sites, Block services, Schedule and Email.
Some are so literal that they may block sites that are actually useful to children.
A blacklist, though, can only block sites that its creators know about.
Given that filters often block sites unintentionally or can easily be circumvented, such companies may be on to something.
So the government wants to give the British Board of Film Classification the power to block sites that don't comply.
The law enacted in July 2010 allowed the government to force Belarusian ISPs to block sites within 24 hours.
But so far there is no evidence that AT&T or Verizon have tried to block sites or demand ransoms.
The amendment had been roundly criticised last week when it was added, as critics pointed out that it could be used to block sites such as YouTube.
The other reason for using Facebook on mobile, she says, is that "when I am working, corporate networks tend to block sites like Facebook".
So when a government censors the Internet, it had better think twice: "Cute cats are collateral damage when governments block sites," Mr. Zuckerman wrote for a recent talk.
Once it is rolled out there is nothing to stop it becoming mandatory – the government may even fine companies for failing to block sites.
