Security or insecurity changes faster than the minute hand on your watch. Make sure that you have a reliable source on the ground at each place you intend to land that can give you the current security and weather situation. Also make sure you carry enough fuel to get you to your alternate, in the likely event you can't land. Fuel reserves in S Sudan aren't calculated in minutes, but rather in hours. A fully charged satellite phone, imodium and extra water and fuel are a must. Stand your ground with the nationals, but please don't argue with them. When the rains arrive in a few months, and someone tells you "wet land-able", trust that comment as much as you would trust a prostitute without a condom. Good luck