Am I missing something very obvious here?

Sometimes when I click on the Sign In link on the twitter page, I am taken to the old twitter login page instead of getting the sign in control at the home page. However, there is something which I noticed right now, which I found very strange. The twitter login page does not use https: but uses simple http: .Check out the screenshot below

 

Contrast this to the login page of Google, where you can clearly see the https and the secure seal on the browser.

 

Did someone at twitter just forget about the whole https thing? Has this gone unnoticed for this long? Or am I missing something very obvious over here?