Huh?
I worked in one of the data centers in Reston. Big sleek buildings with large parking lots the size of Walmart, with no signs outside telling you what it is.
The other ones with high fences, barriers, and federal police.
And other one that is an actual bank on the bottom floor, but the elevator off to the side away from normal traffic can only be operated by a special card. Yeah, that one.
They are all over Reston because of the comm infrastructure that was laid before Reston was built up.
Not Reston.
There are a few government or contractor facilities there, like the FAA and some spooks (actually, in next door Herndon) but all the new and much bigger data centers are in Loudoun county.