[fso301]

It was the placement of the bombs that made them less deadly. The triggers and hardware worked reliably, and did show expertise. I'm pretty sure the investigation will turn up that a pro either trained them or handed them the triggers ready made.

On the video and all images I've seen, they looked calm as if they had rehearsed the attack quite a bit or had carried out similar attack(s) in some other part of the world.

[Zhang Fei]

On the video and all images I've seen, they looked calm as if they had rehearsed the attack quite a bit or had carried out similar attack(s) in some other part of the world.

You know how dogs have different temperaments, depending on the breed? It wouldn't surprise me if Chechens were born with the temperaments of stone killers.