Sure! And it's a matter for debate, but I would draw the line somewhere between what kinds of customs checks there are (e.g. we scan everything leaving a foreig

Sure! And it's a matter for debate, but I would draw the line somewhere between what kinds of customs checks there are (e.g. we scan everything leaving a foreign vessel with an MRI and 10% at random with a mass spectrometer) and something covert and sensitive like an informant.