 Good morning, I'm Mark Lewis with the top local stories we're following this hour. In downtown Washington, the NATO summit is getting underway and that means intense security is being enforced. More from WTOP's Luke Lukert. Confusion about road closures due to the summit are already setting in. For several hours here on Constitution Avenue near the National Mall, dozens of cars have tried to turn left onto 15th Street headed toward the White House, only to be turned away by police.