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.
The red line corresponds to region (1) where no unfolding of IG domains took place; the green line to region (4) where no further folding-unfolding of IG domains took place.
