In news that both bolstered and weakened the perceived efficacy of the Do-Not-Call Registry, the General Accountability Office reported that the DNC Registry took in only about a third of the revenues required to pay for its own operation, according to DM News. The remaining $9.4 million came out of the U.S. Treasury. On the other hand, two different studies asking registrants if the program proved effective found that about nine out of ten people reported receiving fewer annoying calls. Enforcement has proven relatively easy, with the Federal Trade Commission filing only 10 lawsuits so far and the Federal Communications Commission issuing 16 citations and signing two consent decrees. The operation and effectiveness of the Do-Not-Call Registry has been watched closely by anti-spam groups that aspire to create a similar list for email marketing.