Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Note that the progress through the image set is shown at the top of the screen (75/170 in this case), and the user has the option to go back to the previous image if an incorrect score is mistakenly assigned.
