The "Not secure" means that the site does not have an encryption certificate. Here's the URL for this thread:
"http://www.freerepublic.com/focus/f-chat/3698625/posts"
What this means to you and me is that all posts/replies/PMs are sent in the clear (not encrypted).
Please disregard my previous post. FreeRepublic.com does have encryption certificate, you have to use the URL:
https://www.freerepublic.com/tag/*/index?tab=articles
My request for the site admins is to redirect any http://www.freerepublic.com/ to https://www.freerepublic.com/.