Obscenity laws were passed in order to prevent items, objects, or materials that had no artistic or literary value and were are intended to offend from being sold or distributed. The test of obscenity is somewhat subjective and includes three components, known as the Miller test. Generally the material has to appeal to the viewer's prurient interest, deviate from the accepted community standards and have no literary or artistic value. In this test different locations may consider a particular item obscene or artistic, depending largely on the community norms. The issue of obscenity laws is complicated by the First Amendment, which prohibits the United States Congress from passing laws that inhibit or infringe on the right to free speech and freedom on the press, among others. Typically obscenity laws are difficult to prove, however in cases where children are the subject matter, such as in child pornography, the laws are much less open to interpretation. Obscenity laws do not apply to material privately viewed in a home, but can come into play when the material is mailed, transported or sent over the internet.