There was a picture of one of them being tackled by the police - he looked Bosnian or Albanian, to me. There’s a large number of them in Jacksonville.
In that case, if there was indeed an explosive device, it may not have been intended for terrorism but instead for crime, since the “Bosnian Mafia” is very active among that group.
That said, who knows what happened? It was a very strange incident, since apparently one of the men told the TSA person that he wouldn’t open his bag for inspection because it had a bomb in it! Sort of an odd way to go about either a terrorist attack or a criminal act.
You do know that Chechens, Albanians, and Bosnians are largely muslims, right?