Recently the Google Chrome/Chromium security team proposed for browsers to gradually change their UX to clearly display to users that HTTP websites are affirmatively NON-secure.
They intend to devise and begin deploying a transition plan for Chrome in 2015.
https://www.chromium.org/Home/chromium-security/marking-http-as-non-secure
https://www.google.com/search?q=Google+wants+to+turn+browser+signals+of+Web+encryption+upside+down