By all means we must have draconian searches and in depth investigations to protect ourselves from the dangerous Canadians who want to kill us all.
Or if you are afraid the the terrorists will first enter Canada and then come south to get us then you are admitting that Canada is not as cowardly as we are about letting others into their country.
I agree, though my wife and I have never had any difficulty when coming back in from Canada. Last year, we were asked more questions when coming in from Windsor to Detroit than we were at any other crossing (except for that trip, we have crossed the border by rail every time). This year, the inspectors at Rouses Point, after looking at our passports, did not even ask for the customs declaration I had completed; perhaps we have been profiled. Other passengers, of course, took more time. When we arrived in Vancouver, on the same trip, we were quickly cleared (we were the first in line) after I handed the inspector the customs declaration.
Twelve years ago, when we came through Port Huron, we were asked one question, “You two hitched?” We replied, “Yes.” On that same trip (we entered and left Canada twice), we saw that some passengers had to carry their baggage to the lounge car and open it during the stop at Rouses Point. One young woman was exceedingly annoyed that she was required to do so.
The only time that I was required to open baggage was when I went from NYC to Montreal in 1984, and checked a suitcase from NYC and was asked to open it in Montreal.