:That particular article has received quite a bit a of vandalism of the last few days. That particular line was removed very quickly, but it looks like it was stuck in your browser's cache.  You can play around with the "history" tab and see a list of all the edits; that helps to determine who made what edits and when.  There's really not a way to "hide" text and have it display on the page (unless someone vandalizes a template being used on the page).  Thanks for looking it to it, please leave me a message here or on the article's discussion page if you need any other help.