1.   Although the luggage has been scanned through an X-ray system, passengers still may be asked to open the bags and let agents check the contents.

2.   And a fifth InVision machine is scanning lost luggage at the FAA technical center in Atlantic City, New Jersey.

3.   Checked-on luggage is scanned through X-ray machines only on a random basis.

4.   Fraport staff use portable X-ray machines to scan luggage early.

5.   In addition, X-ray machines used to scan luggage are not designed to find many types of bomb-making materials.

6.   Luggage was carefully scanned with X-rays.

7.   Portable X-ray machines scan suspicious luggage.