
John Anderson of Minneapolis, who turned 6 on July 4, is among those who have been inconvenienced.
He was first stopped at Minneapolis-St. Paul International Airport in 2004, when his family took him for his first airplane ride to Disney World. "We checked in at the ticket counter, and the woman said in a stern voice, 'Who is John Anderson?' " says his mother, Christine Anderson. "I pointed to my stroller."