Quote Originally Posted by elmojo
but back to what I was asking, wouldn't he be the least bit curious to why itachi defected and joined akatsuki in the first place?
Well, that's what someone who isn't emotionally attached to that whole betrayal/massacre thing would say. Sasuke's only focused on the fact that this guy killed off his entire family/clan except him and just wants revenge. Despite his apparent coolness, he's really a simple guy.