FILE PHOTO: An air-to-air front view of an F-15E Strike Eagle aircraft of the 336th Tactical Fighter Squadron. (Photo by USAF)
You'd think pilots would get the idea by now.
Two small aircraft wandered into Camp David airspace on Saturday. F-15 fighter jets under NORAD command scrambled and escorted the plane out of the protected space.
President Obama is spending part of the weekend out at Camp David.
A similar incident took place last week and the week prior, marking this the third and fourth such incidents.
After questioning at a nearby airfield, it was determined the pilot had merely made a navigational error.