and are undetectable using WTMD, Various types of plastic items are
also good replacements for objects listed in the current legal regula-
tions as prohibited onboard an aircraft. Also, the 3D technology has
become available. which allows for printing any object in plastic and 39s such object may be brought onboard an aircraft to perform an act of unlawful interference.
The same problem applies to explosive materials, which do not
contain any metal elements and will not trigger the traditional
WTMD, which may be detonated using generally available (even in
the restricted area of the airport) items that may be carried onboard