It's finally possible for travelers to move from one concourse to another at Washington's Reagan National Airport without going through security a second or even third time.
Tuesday marked the opening of the renovated main terminal's National Hall, with the broad corridor linking the three concourses now inside security. Previously, before completion of 'Project Journey' changes, each concourse had its own security, and going from one to another could only be done by secure shuttle or by rescreening.
The airport's original design predated 9/11 and the full security measures that stemmed from it, and has long been a major inconvenience for travelers. In addition to the security shift, the airport also eliminated the notorious Gate 35X, actually a doorway to an area servicing small regional jets. It's been replaced by a new concourse.