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: Baghdad Suicide Car Bomb Kills at Least 6 -- Police (Reuters) Reuters - A suicide truck bomb attack on an Iraqi\security checkpoint near an entrance to the fortified Green\Zone complex on Tuesday killed at least six people and wounded\at least 40, police said.

World