text:  Millions of Americans will be in the skies this week and next. Millions more on the roads. ABC's Jim Ryan has more on the 4th of July travel rush beginning today. By an accident to the calendar, the Independence Day period is longer this year than most. But the increase in both air and road travel is significant. The 2024 projection is 5% higher than last year and an 8% increase over the 4th of July holiday in pre-pandemic 2019. The TSA expects today to be its busiest screening day ever.