I’m not convinced that Sarah Palin is ‘up to something’ with this cancellation. I believe it was partly a security issue for her. Sudan is a very dangerous place and if Palin had to take a horde of bodyguards for security plus the inevitable media herd that would follow her she may have figured that she would be more of a distraction than an asset to the groups purposes. I’m just not reading anything political into this - but I could be wrong.
I’m inclined to believe that is a valid reason for cancelling.