 John, here along the ellipse on 15th Street, tall anti-scale fencing is being assembled on the sidewalk. Crews have already erected this fencing on sidewalks near the convention center, where the summit will be held, as well as Mellon Auditorium and, of course, the White House. This morning, traffic is blocked off on 8th Street, where it runs in front of Lafayette Square, and you can expect those blockages to increase.