On the Home Front - Another reminder that Washington, DC continues to be a city under siege. This comes on the heels of a decision to close Pennsylvania Avenue in front of the White House permanently. That was a shame, I thought, since there seemed to be a lot of interest in building a tunnel to reconnect this major DC transportation artery, which was abruptly sealed after the OKC bomb. Apparently, such tunnels don't provide adquate security against truck bombs, especially dirty ones. In our own neighborhood, trucks are being kept off of Jefferson Davis Highway in front of the Pentagon. I frequently run down that way and see the state police and Army Humvees watching along the road for violators.