User blog comment:Thailog/Ep. 207 "Depths" discussion/@comment-3003805-20120620034111/@comment-432124-20120621014358

Yeah, and as for the "five years" thing, there are a lot of things that should have been discovered, but weren't, in the last five years, such as the Green Lanterns not finding out about the JL's attack on Rimbor. And Conner could have possibly kept his heritage from Clark in fear of being rejected again. The fact that Clark calls him "little brother" makes me think that he doesn't know.