Coincidently, I was independently wondering about this too. The same measure is taken for other valuable targets. For example, many major bridges in the US are

Coincidently, I was independently wondering about this too. The same measure is taken for other valuable targets. For example, many major bridges in the US are rigged to self-destruct in the event of capture during land invasion. You won't find much information about this online. All I can say is, there's a reason why many jobs at the US DOT require a security clearance. If you want to read up on another real world example of this, here's an article about how Switzerland implemented this: https://99percentinvisible.org/article/designed-for-demolition-why-the-swiss-rigged-critical-infrastructure-to-explode/ https://99percentinvisible.org/article/designed-for-demoliti... There is an interesting theory by Dimitry Khalezov concerning 9/11. He states that this was also done for the NYC World Trade Center and the Chicago Sears Tower. He claims the event occured because a bad actor gained control of this demolition system for the WTC, and that the planes were part of a cover story. It's an interesting explanation. Check it out if you're interested: https://youtu.be/IU7KRHOdnuo https://youtu.be/IU7KRHOdnuo