Surely, it’s a contender:

Police astonished by rectal capacity of prison smuggler

Of course, Tom Friedman manages to get his whole head in the same cargo hold.

Update: It’s the Politburo, Stupid. From a reader:

Jonah, it’s not so much that Tom Friedman is capable of getting his whole head up his own rear end.
It’s that he’s able to get his head simultaneously up the ass of every single member of the Chinese government.