Lmao I've got that same knife, the big one with the light metal handle. It's got a hollow pommel with a firestarting kit inside, and the knife fucking sucks absolute shit. It's super wobbly because it's a fucking blade with no tang attached to a hollow tube of a hilt that's awkwardly sized, and even when tightened fully it just doesn't want to sit right.
I didn't buy it, mind, I was just given it after it was "lost" from a hoarder relative's collection of random garbage. The only use I've managed to get from it is hacking the bark off a branch I was turning into a handle for a rusty old tool head I found and cleaned up.
But yeah, most of that shit is expensive enough that people who just like owned it personally wouldn't be going on a suicide mission to do terrorism in a country that's already on high alert against attacks like that. Even if they're bloodthirsty reactionary dipshits with like adult-chunibyu level delusions of grandeur, which let's be real all these operator types definitely are, actually acting on it is definitely an "incited and/or funded by CIA agents" kind of thing. Especially since they were going to meet with a local contact to start doing terror attacks, there's no way that's not a CIA op doing its usual thing of throwing money, guns, and logistical support at some bloodthirsty fascists so they can go and spill some blood in the name of the American empire.