ben collins is the winner. they start by swimming in the hudson river then bike on the west side highway then finish with a run through central park. that looks like something that would be pretty hard to do. the heat we've that won't quit parts of the country are sweating through another 100-degree plus temperature day. texas and oklahoma seem to be getting the worst of it and i'm glad you and i aren't trying to run in that. >> new york city was perfect this morning. they didn't get to 80 degrees until 11:00 this morning zpl that's nice, not too bad. >> even a little misty this morning. hopefully that helped cool them off. i don't think i'll ever swim in the hudson river. >> i don't looks pretty nasty. >> good for those 3,000 people however. the rest of the nation wish the night time low would hit 80 degrees, that's how bad it's been across the midsection. as joe mentioned, oklahoma and texas have been seeing the brunt of it. the advisories still in effect. we're going to start this see this cool down a little

this year's winner is ben collins.ome of the participants were cnn ireporters who have been training since january in the fit nation triathlon challenge. i'd like to try that. >>> the tuskegee airmen made history during world war ii. they formed a squadron of african-american fighter pilots during a time when the military was segregated, and many thought they couldn't do the job. history proved the critics wrong. now with one of their restored vintage training planes heading to the smithsonian, several of the airmen look back. >> what does it mean to be a tuskegee airmen? well, certainly we're a member of a very exclusive group of airmen. we all worked together. we love one another. >> i was doing what i considered one of the most challenging and pleasant careers of my life, and that was flying. >> it was like a fraternity. there was a tremendous amount of brotherhood. because guys were helping each other, you know. a fellow couldn't perform to some degree or couldn't grasp something immediately, his buddies would jump