Walkingfeather your theory was VERY astute in light of the Russian explosiona...Belated BTTT. I've got to back track and read ALL the Flight 327 threads.
I think it is a fair assumption that the crews wouldnt look into the septic tanks of the craft from the toilet side. Which I would imagine would have a larger hole than the drain hole. Especially since the passager sitting near mr. Mcdonald Bag smelled of toilet chemicals when he returned to his seat with an empty Bag and no trace of the contents in the garbage of the toilet.
I just emailed Homeland Security my theory. My be true maybe not. I figure it would take 2 hours to check the tank from the toilet down with a flexible sewer cam, if they find nothing, we got to find that Mcdonalds bag guy and ask him to work for a waste managment service to take care of our landfill problems.
The other thing I would ask the air marshalls is ... the guy with the limp or dragging his foot, did you look at the wear marks on his shoes? If he is dragging that badly through a north american tour he has got to be showing it on his shoes. If not? Why not? If this guy was with an enterage of musicians and the Feds followed them to their gig, was this guy still limping? I dont know ....?