Midnightspecial,
Whilst I applaud the effort to keep the press from unwanted intrusion, I question the need to keep "...the FEDS away until representation could arrive".
If the crew are medically fit to assist with the investigation into the accident, then immediate access might well prevent recurrence. For example, if the cause was due to a problem with the airport approach equipment, then identification of this must surely be of the highest priority.
The crew can still refuse to answer a question that they feel might incriminate them, until "professional" help arrives, whilst permitting useful information to be gathered by the investigators.