Tom MacDonald reports on a new braking system on SEPTA trains, which most likely would have prevented the fatal Amtrak crash in May. Laura Benshoff tells us about a new report finding dangerous and unsanitary conditions in some Philadelphia schools. Ben Herold, Education Week staff writer, joins host Dave Heller to talk about an education technology conference happening in Pennsylvania. Jessica McDonald explores what happens when an experiment fails. And celebrating two landmark events in the gay and lesbian community, activist Kay Lahusen remembers what the first demonstrations were like at Independence Mall 50 years ago.