Acronym collision

Just when I'd gotten my head around one ACA (the Affordable Care Act aka health-care reform), comes another ACA (the company that was supposed to have built the tranche that a short-seller actually built).

P.S. If you are confused about what is supposed to have happened, this is an excellent, concise explanation of the SEC's allegation. You can understand it even if (like me), you don't understand what exactly a CDO is.