First Lady Michelle Obama's plane aborted a landing near Washington on Monday after coming too close to a Military Cargo jet, according to FAA officials.  The First Lady's plane came within 3 miles of the other aircraft. The FAA requires that distance to be at least 5 miles to avoid dangerous turbulence created by the cargo plane.

FOX's Doug McKelway explains from Washington DC:

Here is the FAA's Statement on the incident:

FAA controllers at Andrews Air Force Base instructed an incoming Boeing 737 on approach to Runway 19 to perform a "go around" on Monday, April 18, 2011 just after 5 p.m. because the plane did not have the required amount of separation behind a military C17. The FAA is investigating the incident. The Boeing 737 landed safely after executing the go around. The aircraft were never in any danger.