Comment Re:Diplomatic pouch? (Score 5, Informative) 299
Suppose they drove a van into the embassy, Assange got in (or didn't get in), and they drove it out to an airport.
Your plan is close, but you would actually need a man-sized diplomatic pouch, large enough for Assange to crouch within, with the zipper fully closed with a diplomatic seal. He'd need to stay in the pouch until his plane was outside territorial airspace.
The "diplomatic pouch" concept comes from the Vienna Convention on Diplomatic Relations, art. 27:
Art. 27(3): The diplomatic bag shall not be opened or detained.
However, the next section kills your plan:
Art. 27(4): The packages constituting the diplomatic bag must bear visible external marks of their character and may contain only diplomatic documents or articles intended for official use.
Diplomatic pouches have been opened in the past when they contained, for example, mines, drugs, and even a person - and they weren't violations of the Convention, because they were no longer diplomatic pouches.