I hope in this case it was the FBI doing its job before something bad happened.
Given the FBI’s history of luring people into a trap by implicating them in a terrorist plot using stooges, like the Gretchen Whitmer fake kidnapping, the FBI has lured simple minded Arabs into staged terrorist plots in order to show the public they are on top of things.
Let’s not forget the FBI was ease dropping on Parents complaining about their kids education Virgina, labeling Catholics who participate in traditional Latin Mass as rightwing radicals, etc..
Tajikistan is not the nicest place in the world, but they hate the Taliban and worked closely with the US to fight against it.
Likely there was a hint from the Tajikistan intelligence service about these terrorists.