Eastern Hills High School 1961 - 2010

A c. 2010 HQ picture recently uploaded to Wikipedia stimulated putting it together with an old one I had from the early 1960s. It's pretty remarkable that not much has changed.
There are some additions that have been made to the rear elevations, but this one from the front looks quite familiar. Aside from the minor changes in the signage about the only thing I see that causes me to question what's going on, is the addition of some kind of fencing along the roof lines. Wonder what that's about?
Adios