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#### 6.9.14 Agent Caveats

The Gnus Agent doesn't seem to work like most other offline newsreaders. Here are some common questions that some imaginary people may ask:

If I read an article while plugged, do they get entered into the Agent?
  No. If you want this behavior, add `gnus-agent-fetch-selected-article` to `gnus-select-article-hook`.
If I read an article while plugged, and the article already exists in
  the Agent, will it get downloaded once more?

  No, unless `gnus-agent-cache` is `nil`.

In short, when Gnus is unplugged, it only looks into the locally stored articles; when it's plugged, it talks to your ISP and may also use the locally stored articles.