Sometimes it helps to see something in action to fully understand how effective it is. These videos, demonstrate how the CSECO density meter and contraband detection equipment is used regularly by US Customs and Border Patrol agents.
Tony Harris Interview - National Society of Black Engineers - History and Future
NSBE #45 Tony Harris Speech
Buster in use at border checkpoint
Buster K910 Density Meter and Contraband Detector in use at border checkpoint
Buster in use by highway patrol officer
Buster density meter and contraband detection in use by highway patrol officer
Fiberscope in use at border checkpoint
Fiberscope in use at border checkpoint for contraband detection