I am sure PA38 is right about security personnel going through the motions. Only last week I flew a 4-flight journey in Western Europe. There had been a discrepancy whereby the airline mis-spelled my surname, so the ticket/boarding pass name was moderately different from the name in my passport. No big deal, perhaps, and I don't really blame the people involved who are under some pressure, but I was a bit worried someone might have spotted it. Not a bit of it - went through four separate check-in/security procedures at three airports.