Eric Goldman writes "A couple of years ago Utah enacted a 'Child Protection Registry.' The idea was to allow parents to register kids' email addresses and then to require certain email senders to filter their lists against that database before sending their emails. According to the Salt Lake Tribune, the Utah registry has been a 'financial flop.' Initially projected to generate $3-6 million in revenues for Utah, it has instead produced total revenues of less than $200,000. 80% of this has gone to Unspam, the for-profit registry operator; Utah's share of the registry's revenues has been a paltry $37,445. Worse, Utah has spent $100,000 (so far) to defend the private company from legal challenges by free-speech, advertising, and porn interests."