Okay, pre-boarding notice would have been nice. I pay more attention to my bags when I travel than to other people. They used to ask if anyone was after your bags or wanted you to take theirs [as if!]
But I’d rather inconveniece 200 people than apologize for not doing so as the plane goes down.
You people act like airplanes are getting hijacked out of the sky left and right! Prior to 9/11 there have only been two notable hijackings of airplanes taking off from US airports: D.B. Cooper in 1971 and a Serbian national in 1979. Since 9/11 we have had no hijackings.
Statistically, you probably have a better chance of getting hit in the head with a meteor from space than being on a hijacked airplane taking off from US soil.
But let's just keep on being paranoid and inconveniencing other travelers because certain passengers appear to act suspicious. Too bad all those people missed their connecting flights and hotel reservations but we'd sure rather be safe than sorry!