A few years ago the UK police carried out Operation Ore. It was a major operation targeting online child pornography. Some 7,272 British residents were added to a police database of people who paid to view child porn online. 4,283 homes were searched, 3,744 people were arrested, 1,451 were convicted. It was a major blow against pedophiles. Or at least, that was the theory. The US had a similar operation, Operation Avalanche.