@ Boomerang Butt,
I was thinking exactly the same thing as I watched the news unfold earlier this week...
The oldest trick in the book.. sleight-of-hand... "look here... while we do another thing under the table.."
Or perhaps it was not a dry-run and the devices failed to ignite (thankfully!!) due to some error on the terrorists part?
What I find most disturbing is that both parcels flew out of Yemen on QR passenger flights before transitioning to standard cargo flights..!!