Having lived here all my life, I can tell you that in Loudoun’s case (which is the richest) it’s not the government which makes it wealthy, it’s the technology. Data Center Ally.
Yeah, none of that ‘high tech’ stuff could be related to government... Nope, they can’t influence things so DC get the ‘clean’ and wealthy companies...
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“Most of the 22 active and retired government and military officials interviewed said ... agencies have been made easier by LaRouche’s move to Loudoun County last year. .... LaRouche said in an interview that he has visited the CIA’s Langley ... Inman, now head of a Texas-based computer research organization, said the ...” *more at link:
http://www.washingtonpost.com/wp-srv/national/longterm/cult/larouche/larou1.htm