 Today's expected to be the busiest travel day of the entire summer. ABC's Jacqueline Lee is at one of the nation's busiest airports. It is moving here at LAX, and TSA is expecting to screen more than 3 million passengers today alone. American Airlines saying they do expect today to be the busiest day of the entire summer. Tourism season in Alaska could be different. Residents in Juneau will consider a measure to ban cruise ships with 250 or more passengers from docking there on Saturdays.