"One of my in-laws was EOD in the US Army, and has rode in this vehicle. You need to find a dog that will not signal on explosives of any kind. Furthermore, the clock on this stop, per <supreme court decision about unreasonable roadside detention>, is starting to run a bit long. Here is my attorney's card."

I am convinced that if the American police forces wish to detain, arrest, or take your money, they will find a reason to do so, or create one where none was there before. Assets forfeiture, detainment, and arrest without legitimate judicial reason is deeply unfair. Regardless of innocence that may be found and adjudicated later, the damage to ones reputation, employment, and even banking can be disastrous. Recourse is often costly or non-existent.