At first there was the seizure of a long list of domains selling actual counterfeit goods. Also included was bittorrent meta search engine (a search engine that searches other search engines). The seizure of this site, TorrentFinder, was concerning as it did have and copyrighted files. Rather it linked to sites, which linked to files, which may link to copyrighted files.
These seizures are part of a US government (ICE, DOJ) operation called "Operation In Our Sites" and they target .com domain names.
In another similar operation "“Operation Save Our Children" (btw don't you just love that name? The genius is that no one can oppose it without being branded a child abuser). In this operation domains of sites related to child porn were seized. I'm not too sure why they were seized because I'm sure any reputable DNS provider would drop the domains if they were alerted to the nature of these sites by the Feds. Also, distribution of child porn is a crime. These people aren't going to have public facing websites but rather a darknet comprised of topsites, hidden irc servers, Tor, etc.
But the most concerning thing is that 84,000 domains were seized but these were from a free DNS provider. With these service providers you get a name eg. g-minecraft-server.dyndns.org and point it to an ip of say a private minecraft server. People who use these free dns services are individuals working on a personal websites or very small businesses who want a name for free. Well all these domains were seized and then a banner was placed accusing them of child porn crimes. That is the worst thing that a person in this day and age can be accused of - and this would have scared and shocked the owners and users of these websites.
Why is the government so incompetent with technology?