User blog comment:Erockrule/Next Time On Young Justice " Darkest"/@comment-130.18.106.87-20120930223959/@comment-5188108-20121001124342

The "other" Dick mentioned was the other secret, i.e. that Kaldur was working undercover, not another person who knew about Artemis' non-death. It's just the four of them who know. And maybe Impulse.