On the evening of Oct. 24, 1998, downtown Detroit was quite literally ground zero. Breathless reporters were perched on rooftops. Every TV station was live. Video beamed across the country via satellite. And then, at 5:47 p.m., explosions ripped through the 87-year-old J.L. Hudson building, and it collapsed in a plume of dust. While crowds — and Mayor Dennis Archer — cheered, Miles O’Brien, then a rising star at CNN, felt something else entirely. “Oh, I cried.