There is no such thing as 100% security. You can build a fence and try to say &quot;but someone who really wants to get in will bring a wire-cutter,&quot; but that&#x27;s just missing the point. The point is that a fence is cheap, and you want as much security as you can reasonably afford.<p>There&#x27;s no way <i>anything</i> will stop anyone who <i>really</i> wants to get on a plane. But when you play a game of chess, you don&#x27;t try to play a perfect game, you try to play the game that gives your opponent the most opportunities to make mistakes. You force your opponent to make decisions, because that&#x27;s how they end up making the <i>wrong</i> decisions and get caught.<p>So go ahead and make a fake ID. You&#x27;ll fail to board more by doing that than you will if the airport doesn&#x27;t even bother to ask for ID.