Work on moving utilities in Tysons Corner has begun in anticipation of Metro's much-ballyhooed Silver Line to Dulles Which may or may not happen  of course  because of issues with lawsuits  as-of-yet undelivered federal funding  and concerns about marring the awesome aesthetics of Tysons' exquisite combination of endless traffic  low-rise  big-box Bed-Bath-N-Beyond dreck  and mid-rise office buildings that were the architectural answer to the mirrored sunglasses craze of the mid-1980s