40% of Internet users do not upgrade their browsers to the most secure
version. Internet Explorer users have the worst record, with
more than half having failed to update.

OK, people, do your patriotic duty and get with the upgrades!
Then we can see the National Threat Advisory go down to blue,
for the first time in history.
(source:
href="http://arstechnica.com/news.ars/post/20080701-40-of-surfers-dont-bother-with-browser-security-updates.html">Ars
Technica)