CFTC tightens limits on brokerages using customer funds

Um, laws against commingling and stealing from segregated client accounts are already in place.  Why doesn't the government worry about enforcing existing laws instead of ginning up new regulation, that will again--go unenforced?

http://www.reuters.com/article/2011/12/05/us-financial-cftc-meeting-idUSTRE7B410420111205