PHILADELPHIA — Hundreds of pro-Palestinian demonstrators marched through Center City on Saturday afternoon to disrupt the last-minute Christmas shopping blitz with sorrowful reminders of the ongoing siege in Gaza — a protest that culminated in a tense standoff with police officers and the arrest of two protesters for disorderly conduct near Rittenhouse Square, authorities said. Cpl. Jasmine Reilly, a Philadelphia Police Department spokesperson, said a demonstrator attempted to put a sticker on a police vehicle near the park. As the protest was winding down, an officer was seen confronting the ...