[RedMDer]

The bag belongs to a 37-year-old man, said to be a naturalized U.S. citizen, who was scheduled to catch a connecting flight to Jamaica.

Profile, profile, profile. That's the best way to prevent this in my opinion instead of chasing our tails and overwhelming the screeners. That must be one of the most boring jobs in the world. No small wonder that packages get past them.

[LetMarch]

Yes! Absolutely! Profiling overwhelmingly the best system above all others!
It saves time, cost and lives! (which may not be their highest priority)