I would say that most of those reports are false alarms. Most of the time those agencies aren't actually trying to
connect to your computer. It's probably mostly just port scanning. It is someone on a PG blacklisted IP range ping-sweeping the IP range you are on. It seems that the purpose of that would be to se all of the computers that have port 6346 open. Take a look at
this to keep track of what ports are active on your machine. As long as you have a good firewall (ZoneAlarm, Black Ice, Sygate...), PeerGaurdian, and the Active Ports tool you should be safe from prying eyes. Just remember, don't get too alarmed over what you see on the logs of ZoneAlarm or PeerGaurdian. Good luck.
deepblue