This is the school I went to for a year in the middle of high school, the last half of 10th grade and the first half of 11th grade.
What's crazy about this is that the "security breach" was two 19 year old alums in the building and in a classroom without permission.
I remember going to Akiba (my other high school) just about every break for the first couple of years after I graduated. The day before Thanksgiving was a quasi-traditional day for alums to wander the halls, but it was hardly the only day. I remember walking in the building once with
Yes, things are different now. But my Akiba visits, while mostly pre-9/11, were all post-Columbine, and some were post-2000 Israel intifada. These Upper Merion kids "were located in a classroom and were arrested without incident", and "[n]o weapons or contraband were found".
It's a different world.