 Fourth of July travel well underway as millions of people continue to hit the roads for their holiday plans and fly. Triple A projecting more than 70 million people will be on the move this holiday. The most ever. TSA saying we could see the most passengers ever this weekend. While there are about 30,000 planes in the skies today, that number jumps to 46,000 tomorrow as travel ramps back up. Sunday will be the big day to head back home. ABC's Victor Okendo in Miami.