The tools used to stop spam get in the way of stopping these messages precisely because they occupy that hard-to-define space between real junk and real messages.
The Sheldon comes from the time of Johnson's greatest commitment to Mies van der Rohe and the International style, but Mies would not have liked the arched porticoes with their slender columns and pilasters that define this simple rectangular space.
That more than many other parts of the Target marketing mix helped define the emotional feel and space of a more designed experience that the brand conveys.
But they also reveal Bulfinch's own prophetic sense of the massive volumes of space and stone that would define later neoclassicism, exemplified in the structures designed by Robert Mills for the nation's capital and in the South.