Regarding internet proliferation, the U.S. Department of Justice states that "At any one time there are estimated to be more than one million pornographic images of children on the Internet, with 200 new images posted daily." They also note that a single offender arrested in the U.K. possessed 450,000 child pornography images, and that a single child pornography site received a million hits in a month. Further, that much of the trade in child pornography takes place at hidden levels of the Internet, and that it has been estimated that there are between 50,000 and 100,000 paedophiles involved in organised pornography rings around the world, and that one third of these operate from the United States.