The Passle button is designed to enable you to easily quote an article or piece of media. However, it will pick up all of the highlighted text so do be a bit careful about what's in the side-bar and those little time / date fields.

The text below is a good example of how to get it wrong. The screen-grab shows what was selected.

If you want text from above and below a side-bar just be sure to remove the side-bar text before publishing.