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: Study: U.S. Needs to Fight Medicare Fraud (AP) AP - Fraud in the  #36;300-billion-a-year Medicaid program is widespread and the federal government is not doing enough to combat it, congressional investigators said in a report released Wednesday.

World