the plot to kidnap hitler?

http://news.bbc.co.uk/local/kent/hi/people_and_places/history/newsid_9363000/9363982.stm

Interesting, if true.  But I have my suspicions.  The easiest reason I can think for why it never occurred is that it wasn't possible.  I assume that adolph flew with at least one or two armed body guards and aides.  How does a single defector take care of them, and fly the plane, etc.?