Ed Krupa

Four Blocks From Terror Jeffrey Allen was hard at work in the New York Stock Exchange's fifth-floor in-plant when terror struck from the skies. Just four blocks away, two hijacked airplanes slammed into the World Trade Center, filling the blue September sky with smoke, fire and fear. "We heard the explosions," Allen recalls. But that was only the beginning. Told to stay in the building, he and his coworkers experienced the double horror of watching the towers collapse on television and feeling the earth shake beneath their feet. "All the dust and the smoke came over here and we couldn't even see