So they were cleared. That is no assurance that they weren't in the trial phase of the operation. And at the end of their numerous trips to the john, the head guy signaled the other with a forefinger to his throat and mouthed the word "no". That meant, to me, that they planted the various components of the bomb and it wouldn't set to go. Meanwhile, I imagine the plane was scoured for evidence, including the various refuse receptacles.
Why would they mouth "no" in English?
This was either a dry run or an attempt to scare the bejeemus out of everyone on the plane. Either way. it is terrorism.
I agree, and the big question is, which will answer everything either way is WHERE WERE THESE "MUSICIANS" PLAYING? has the head of CIA or FBI or whatever confirmed that these guys were actually a band with a gig date at a casino in LA or was that not further investigated...our intelligence agency is so nerve wracking....