Denver International Airport just turned 18. In 2012, 53 million passengers used the airport, making it DIA’s busiest year to date. Big changes are coming, with a major expansion project under way. Kim Day is the airport’s director, and, once a year, she gives a “State of DIA” speech to the business community. She’ll do that Tuesday, but first, she talks to Ryan Warner.

[Photo: Courtesy of Denver International Airport]