OK,I know Russians kill Chechens,Tell me, what would you do if you were a Chechen? Your country is occupied, your cities and monuments are volontarily and ruthlessly destroyed, half of the local women have been already raped by Russian soldiers, your relatives are murdered and butchered every day, you don't even know why... And the Russian army has this charming habit of exposing the mutilated bodies (women and children included) in public during a few weeks, so that survivors in the vicinity may eventually "learn their lesson well".
So, what would you do?
Do you really think here that the main issue is Jihadism and terrorism?
but anything link up with Chechens attack America?I didn't get the logic on it.
Maybe revenge to Russians is more make sense...
If you say they just became insane...any insane people could attack any countries randomly.