Why use news databases for a media scan?
Search across article databases via LibrarySearch for current and past news.
If the full text of the article is not in the database, click on the "Look for a Copy" link to find it in another database, or request an interlibrary loan.
Some news sites (like the Calgary Herald, National Post, CBC) allow you to search their archives.
Note: Archival content on these sites is not always comprehensive, and can be unstable (i.e. older versions are edited or removed, or some content is available only for a certain time, or links may break). Often only paid subscribers have access the full archives.
It's often better to search for this content in the library databases instead to get full coverage of the topic, event, or person you are looking for.