Uncanny X-Men, Vol. 1 # 198, by Barry Windsor-Smith and Chris Claremont, with Letters by Tom Orzechowski
Marvel AU Questions: What would Black Panther and Storm's reactions be if they found out that Captain America is a Hydra agent and had always been one? And what would the royal couple's thoughts be to knowing this? Note: This scenario would take place in an alternate universe where BP and Storm are still together.
T'Challa would be a lot angrier about it, because he and Steve knew each other better. Storm would support him while trying to do what she thought was best for both Wakanda and the Mutant Community.