I'm not certain how to configure ASP.NET to set the SECURE flag on all cookies, but I think you can add cookieRequireSSL=true or to your Web.config; that is important to do, and especially important if you have HTTP enabled or if you have some kind of redirect from HTTP pages to HTTPS pages.
Mexican flag is full of national symbolism. The green strip represents the Independence Movement. The white stripe represents the purity of the Catholic faith. The red stripe represents the Spaniards that joined in the quest for Independence and the blood of the national heroes. The emblem-shield symbolizes the Aztec heritage.
The symbolism of those colors has changed, though, according to About.com. Today, the white stands for unity, green stands for hope and red stands for the blood of the national heroes. The seal in the center of the flag depicts Mexico's founding story. In this tale, the Aztecs, who were also called the Mexica, were searching for a home.