No. In your scenario, they've searched 100 people with no probable cause (what is a sniffer dog doing, if not a search?), and then done a much more intrusive,

No. In your scenario, they've searched 100 people with no probable cause (what is a sniffer dog doing, if not a search?), and then done a much more intrusive, stressful, and embarrassing personal search of 5 people, also with no probable cause or presumption of innocence, in order to catch one person. Being basically accused of a crime and physically searched by men with guns is much more than an "inconvenience" in my opinion. A system that accuses 4 innocent people of a crime for every guilty person it catches, is in my opinion a broken system that should not be employed. My opinion of course, you may be happy with a much higher level of police intrusion into your life. Gotta stop those dangerous drug users!