 Good morning, I'm Michelle Bash. And I'm John Aaron, coming up. Lots of us traveling by air this 4th of July. I'm Neil Orkenstein. You can handle one heat wave, but what happens when they keep coming and coming? I'm John Doman. More problems with D.C.'s troubled 911 center. This is literally life and death. I'm Lynn Bowie. Looking for all the July 4th fun without the big crowds? We have some ideas for you. It is going to be less humid today. The humidity returns tomorrow. 7 o'clock.