 What a good Tuesday morning. Welcome in. I'm Dean Lang. Glad you're with us. It's 2 a.m. hour. World leaders are set to meet later today, this Tuesday, and through much of this week, in fact. Heads up for WTOP in D.C. for the NATO Summit. Seventy-five years ago, the North Atlantic Treaty was signed by 12 countries meeting right here in Washington. The summit means a lot of road closures and extra security, as you might imagine. WTOP's Neil Augenstein with more.