[MeshugeMikey]

I somehow had a dreadful sense of “knowing” that when the report of the mysterious “projectile” first was reported.

Middle class white kids...asian kids..ETC...do not throw dangerous projectiles at other’s properties

other stuff yes....

three trains three pokectiles
http://www.phillymag.com/news/2015/05/13/amtrak-crash-septa-projectile/

[Publius]

Amtrak owns and dispatches the Corridor, so the SEPTA engineer would have radioed Amtrak Dispatching. The dispatcher would have radioed other trains in the area warning them.

I can remember Poles, southern Germans and Ukrainians in that neighborhood half a century ago. It's -- ahem! -- changed.