They don't actually DO anything.

FOXNews.com - Washington's Wealth Boom - Opinion:

"Take a look at this map. The areas shaded in red are the 100 wealthiest counties in America according to per capita income. At first glance, it's a little misleading, because in the American West, counties tend to be larger in geographic area. But look closely, and you'll see that after the New York City metropolitan area, the largest cluster of wealth in the U.S. is huddled around Washington, D.C.



...The problem is that, save for the tech corridor in D.C.'s Virginia exurbs, the Washington Metro area doesn't actually produce anything. Washington doesn't create wealth, it just moves it around — redistributes it. As government grows and takes control of more and more of the private economy — either through spending, regulation, or taxes — more and more wealth that's created elsewhere comes to Washington to be devoured.

The Washington wealth boom is the result of the massive expansion in government over the last 10 years, which has populated the region with an increase in well-paid federal employees, and wealthy federal contractors and lobbyists...."