The Gerald R Ford Crypt
The fence appears to be only a year or so old. Other work (besides adding the "2006") includes caulking around the primary slabs at the back of the circular area. This may have been in preparation for moving the slabs to access the burial site. These changes can be seen more clearly in the following picture.
There are few memorial gifts at the North sign to the museum.
The majority of the chaos is at the South end where the TV satellite trucks are parked.