LOL it would be interesting ot see the goverment shut down P2P networking. It is a used as a big exchange for "pirated" information and such, but I think it's still the thought behind it. Keep trying to shut us down, and we will keep finding ways to pop up. Plus I would think it would be some sort of privacy issue if they would be able to fully try to stop P2P... but that's a different story...

Back to the topic, yes P2P networking has a lot of problems with it. As Agent Johnson said, you can get viruses, and you leave your computer open so people will be able to find it easy and do port scans and such. You really have to be on your toes, keep up with all the security updates for your OS and AntiVirus software, and always checking your firewall logs (if you can) to make sure you haven't been hacked into.

Personally, I would setup a computer to run Kazaa itself. Put your AntiVirus software on it, and open up the por that Kazaa uses STRICTLY to that computer. That way you can kind of keep a safety net around that computer. Plus from time to time I would do an online virus scan of that computer, using something like Symantec has setup.

Anyway, hope that helped a little...
~AciD