Those of us who live and work in the Washington, D.C. area are used to the sirens, blocked-off streets, and traffic delays generated by presidential motorcades traversing the city. When the President of the United States takes to the sky there can be much more of a ripple effect. Usually the President takes a helicopter to travel the distance from the White House to Andrews Air Force, causing minimum impact, but traveling around the country means the presidential plane, Air Force, is often taking off and landing in high impact areas. I am reminded of this today as President Obama will land at Dulles International Airport in Sterling, Virginia, among the busiest airports in the country, which means that major operations are put on hold, flights in the air and on the ground are delayed and traffic comes to a standstill. In the scheme of things, though, it is a minor inconvenience for most of us to ensure the safety and security of those who hold the office of the President of the United States.