“Never forget” sounds strong until you realize how many people no longer know what they’re supposed to remember. On the 25th anniversary of 9/11, we talk honestly about national memory, gratitude for the men and women who served, and why remembering can’t be reduced to a yearly moment of silence. If we forget the facts, we also forget the stakes and that vacuum always gets filled with a new story. We also dig into the real-world battle over what gets taught to students, including the controv...