I want to carry a steel pen when flying recently, but my other pen looks too "yawara stick" to me. I was concerned it would be confiscated, so I didn't carry it. I searched around and ordered the DST. It looks like a perfect balance of tough and pen. It does not look like an crow-bar with a pen barrel installed. The DST looks like a beefy pen. I will give this a try the next time I fly and hope TSA will respect my choice.