Broadband in Suburbia In many ways, Brambleton looks like any of the new housing developments that have popped up near Dulles Airport. Except coursing under its crisp green lawns and treeless streets is a fiber-optic network with Internet access at speeds once reserved for the largest corporations.&lt;BR&gt;\&lt;FONT face="verdana,MS Sans Serif,arial,helvetica" size="-2"\ color="#666666"&gt;&lt;B&gt;-The Washington Post&lt;/B&gt;&lt;/FONT&gt;