[quote=@Juicy]
Well, is it the character's intention to "out" other superhumans? If he does, that would create a source of conflict, wouldn't it? The idea of powers needing to be "secret" only harbors suponse when there's a chance of exposure. 

It should also be recognized that players are already in the know of who's super and who isn't, so there's no real surprise factor if someone's character is "discovered." 

I, for one, (as someone looking to apply) am entirely comfortable with another character being able to "sense" the presence of superpowers. 
[/quote]

It's one thing to create a source of conflict, it's another thing that one character knows every other super in the story, and it might not be the purpose of the character to out other supers, but it's not really fun knowing that there's a character who can completely fuck yours over without any effort. And the players know who's super, but the characters for the most part have no clue.