<samp> HTML element could be imported as span with specific formatting. Currently it's just ommited.
Jason, thanks for the suggestions, I can see that you already voted for the related item here: http://feedback.telerik.com/Project/154/Feedback/Details/250569
It would be good if there was a setting to change how unrecognised tags are imported. For instance, browsers render unknown tags as plain text, rather than ommitting them.