A small knife -- think of the pocket-sized, fold-up, Boy Scout variety -- is a limited weapon. So even though the term “box cutter” still sends chills down our spines, it shouldn’t frighten us too much to contemplate the Transportation Security Administration’s announcement that it will permit knives with blades shorter than 6 centimeters -- about 2.4 inches.
The top reasons given by the TSA aren’t thrilling: This puts our rules in line with those of other nations and will speed up security lines.
We need to do the safe thing no matter what other countries are doing, and I’ll willingly wait in line if it means a safer trip.
But the third reason given by the TSA is more reassuring: Better for screeners to focus on the things that could be far more dangerous to travelers than a low-level Victorinox. Cockpits are locked now, so a small knife couldn’t be used to turn the plane into a weapon. It's not an effective hijack weapon anymore.