As pointed out below, even if you are not authenticating or transmitting data through sign in, you would still like to know if you are talking to the .gov site.

As pointed out below, even if you are not authenticating or transmitting data through sign in, you would still like to know if you are talking to the .gov site. Also, while they use SSL for authentication, they don't clarify via banner. Moreover, the login is for attorneys representing businesses, so there is potentially even more at stake. Yes, they would like to know they are actually talking to the .gov site.