Editor's note: This article has been updated.
In a forest grove not far from the nation's capital, several dozen men and women gather. As the light fades, they enact a ritual over a century old but as fresh and searing as the flame they ignite.
A cross, on fire.
They call themselves "the invisible empire" for a reason: They thrive in secrecy, almost never permitting outsiders in.
Who are they?
"You don't know who I am," one man said. "You could think the world of me, and yet if you see...Full Story