I had forgotten how beautiful DC is in the spring.
If you look carefully at the high-res image, you can see there's an "event" taking place on the West lawn. There is a huge PA set-up and a couple of thousand chairs. There are more people on the stage than in the audience.
I felt kind of sorry for the folks on the stage. They were ranting about something - the details were not exactly clear but they seemed to be decidedly pro-god (who isn't?). But I am sure they put a lot of work into setting this up and it was a really bit event for them -- all to preach to the empty chairs and confused tourists.