 Downtown, any of the initial street closures for the NATO Summit security measures are having a marginal impact on traffic. It's not all that bad getting around downtown right now. Tomorrow, the bulk of the closures will be in effect. 395, just a minor slowing on the Southwest Freeway, volume building on D.C. and Interstate 295. Right now, buy two windows from WindowNation and get two free. Plus, zero down and no interest or payments for two years. Schedule an estimate now at 866-90NATION or WindowNation.com.