Actually, there could be evidence of manipulation, but there isn't, which is why the Discovery Institute isn't participating in the trial. They know there is no way to test ID.
I'm unclear here.... Do you mean there is no way to identify manipulation. Or that there could be evidence, but none has turned up.
And would that be turned up or turned up yet, but there's still possibilities that haven't been looked at? Seems there are a lot of species and a lot of genes to consider.