Definition: In this task, you are given a news article. Your task is to classify the article to one out of the four topics 'World', 'Sports', 'Business', 'Sci/Tech' if the article's main topic is relevant to the world, sports, business, and science/technology, correspondingly. If you are not sure about the topic, choose the closest option. Note that URLs in the text have been replaced with [Link].
Input: Judge Tosses Pa. Child Porn-Blocking Law A federal judge threw out on Friday a Pennsylvania law requiring Internet service providers to block Web sites containing child pornography, saying the law was unconstitutional and cannot be enforced.

Sci/Tech