I don’t know what the answer is in all of this. I know it is extremely difficult to stop any plan to action.
All I am suggesting is this: What is our current terrorist threat? It is the extremists who run people over with trucks. There needs to be some sort of system to where any guy who looks like a terrorist who rents a truck should be notified to the authorities. They can then secretly vet them behind the scenes without the public/media knowing about it.
As soon as someone makes a truck reservation or pulls out of the lot, he is then somehow “tagged” in the system and authorities do their due diligence. No one else has to know, just keep a close eye on them. This way the guy in question can go about his business and if there is no flags, life goes on while he is none the wiser.
Of course, this will only work with those with a Middle Eastern name. It is stereotyping and it sucks but something needs to be done. I would rather that then sporadic terrorist attacks killing the innocent. Let me be clear, this mainly concerns those males who stand out and look like a terrorist. I would not want the above system to be applied to every person from that region, that is overboard. Just use some common sense and judgement if someone so blatantly stands out.
As for preempting those lone wolfs who are not foreign........that is almost an impossible task. No idea where to go from here.
Stopping just one attack is better than none. Again, I don’t know what to do but America can not just stand idly by and wait for the next massacre.