Paul J. Registerwas a United States Navy officer killed in action during the attack on Pearl Harbor for whom two U.S. Navy ships were named... (wikipedia)
With this, it will give them an avenue to provide information to us that would protect them if they want anonymity.
Many times you have witnesses who are reluctant to come forward.
As much as you want to identify people, there has been a lot (more) time spent ruling out people. That is part of it.