First time I visited I got the same warning, followed by one of those annoying pop ups "Congratulations, you are the so many millionth visitor, click here to check your prize". Very hard to get past. Today no warning but the same pop-up again. Looks like they have a problem with their security.
The warning came from McAfee warning me that the site was not safe, hackers might be able to watch my activities and asking me whether I still wanted to visit the site.