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: Terrorism and the  #39;Net US cybersecurity chief #39;s sudden resignation comes as terrorists increasingly use the Internet as a tool. While Al Qaeda and its affiliates have always used e-mail and the Internet, these electronic tools have 

Sci/Tech