Other than to get a pinup of that oh so sexy Christian Amanpore, why would one go to cnn.gom?
Have you paid your Internet subscription bill?
Either your ISP was hacked, or your proxy server was hacked, or your computer was hacked.
Check the URL address and see if you're being redirected. To a ping and traceroute on the address. Get the IP address cnn.com is being routed to, and do a whois on the IP.
Contact tech support if the problem persists. Use google to figure out what traceroute, whois, and ping are.