As the investigation continues into the crash of a Russian jet in the Sinai Peninsula of Egypt, a number of aviation experts now suspect airport employees in Sharm El Sheikh helped carry out the plot to bring down the Metrojet flight on Oct. 31st.

The “insider” security threat worries a lot of security professionals, especially those in the United States.

CCTV’s Hendrik Sybrandy reports from the U.S. state of Colorado.

Seth Kaplan on airport security

What happened in Egypt is raising questions about the unseen side of airport security.

CCTV America spoke with Seth Kaplan, Managing Partner at Airline Weekly.