Dogs have nuanced and sensitive sense of
smell - much more sensitive than a human.
They are easily trained, reliable, and
loyal. Simply put, humans have not been able
to build a machine better than a dog for finding
drugs and other illicit substances, and dogs seem
more than happy to do the job!
A list of the various things dogs have been
trained to find can be found at detection
The research is still ongoing, but dogs may
even be able to reliably smell whether or not
someone has cancer! Find out more here:
canine cancer detection
Finally, if you have access to Netflix or other
streaming services, I recommend you check out the
Mythbusters episode called "Hair of the
check here ).
The third act features a bunch of proposed
drug masking techniques in an effort to fool drug
So please think twice before bringing any
illegal substances to your airport. :-)