“This begs the question of how do you set up a good, reasonable and pragmatic internal security system so that you have a better chance of spotting a lone wolf, as well as the wolf pack.”
The founding fathers had the only realistically effective method. The 2nd Amendment. The only other way is to eliminate anything that can potentially become a weapon.
If you stop for a moment just how easy an act of terror with multiple casualties is to commit, there really is no foolproof way of anticipating or defending against it. You just have to hope someone with deadly force is there to stop it. Carjack a loaded gas tanker truck in any random place. Instant WMD. There are thousands on the road at any given moment. Now think of all the ways to use it.
That is one approach a well-armed/trained, and alert group of citizens who are willing to act to protect others.
Now, what about New York city, Chicago, etc. where people like this are sitting ducks just like everyone else?
We had the VA. Tech massacre a few years ago. No private guns on campus. Over 30 dead.
My son, a police officer, cannot carry his private, registered/licensed handgun off in DC, or in Maryland. He is supposed to protect govt facilties from terrorists yet he cannot be armed going to or from work.
Our govt is really fucked up and people will die because of it.
I’ve been in this arena for many decades and we are as vulnerable today as we were in the late 60’s, or even more so. Stupidity rules, from the White House to the politically correct FBI and some police departments, Dept. of Homeland Security (the worst govt agency in creation), and the too-often blundering ATF.