The Americans said these people are no longer serving in Afghanistan. If this is true they know who they are. And make no mention of them being arrested.
This means Either they are lying about these people not being in Afghanistan, or they are lying about urinating on Muslim corpses not being part of standard American military policy.
If they know these guys are no longer in Afghanistan, that means they know who they are.
If they know who they are and haven't arrested them, that means what they have done is acceptable conduct.
So acceptable that these guys feel no fear in filming themselves do it and placing it on youtube for the whole world to see.
desecrating Muslim corpses is nothing knew to the American army. Didn't their generals defend their practice of cremating Muslim corpses earlier?
And wasn't burying Muslim dead inside the bodies of pigs standard American practice during the American occupation of the Philippines?