Agreed. I'm just a citizen; not privy to the wide range of secret security knowledge of those in authority, but it seems that if I were an evil doer, and I had SSSS on my BP, I'd either:

A. give my dangerous goods to a co-conspirator who wasn't SSSSelected, or
B. wait for another day.

And automatically selecting people on one way tickets or who made last minute changes, using soley those criteria, is rediculous.