Japan puts navy on alert after unidentified submarine intrudes in &lt;b&gt;...&lt;/b&gt; Japan #39;s navy went on alert Wednesday when an unidentified submarine made a brief incursion into the country #39;s southern waters near Okinawa and Tokyo was trying to determine where the vessel came from. 

Which of the following sections of a newspaper would this article likely appear in? World News, Sports, Business, or Science and Technology? 