The FTC is recommending that ISPs start doing outbound mail filtering. They are also going to identify specific IP addresses as being spam-sending zombies, and report them to their ISP for disconnection. This is pretty good news. Of course, the smart ISPs are already doing this without government prompting, so it remains to be seen whether the other ISPs - by definition not so smart - will comply.
Also, I like the headline that Information Week gave to this story:
FTC Launches International Campaign Against Zombies