How the "professionals" at the Department of Homeland Security (located in the Winston Smith Memorial Building) found the "bomb"

Important clues-
It was marked, "This is not a bomb!" Oh, no wait, that would have worked...
They couldn't help but scrawl "Allah Akbar and death to Israel on it"
The CIA guy who put it on the plane set it down, looked around innocently and then said, "hey look a bomb!" He almost got caught when he had to say it about four times.

But it is nice to know that people in Yemen can't just mail bombs to random Jewish places of worship.
And it is nice to know this is not a "hate crime"

They should have marked it "candy-gram"