Thanks for all very good comments - except maybe the idea of a scale bar/north arrow/lat long grid - I don't think any of those are necessary and would only add to the clutter.
For the GMO ban/aid banned I am little bit torn. I think it is strong of these developing countries to take a hard standpoint in these issues (where the Western world is only caring about financial interests, and are very soft in regards to GMOs). Declaring the country GMO free is a very bold decision (although one has to ask what it means in practice).
The publication tries to take a little bit of a positive standpoint and are looking at the future oppurtunities - and I am not so keen on a map full of ban signs...
On the (receiving GE food) aid issue though, I think that is a little bit different, I find few ways to see anything positive in that. I remember the news on TV where they were showing the grain storage in Zimbabwe where the food was just stored while the people were starving. The potential risks in handling GE foods are different and several magnitudes lower than the cultivating/breeding of GMOs.
That is why I chose a stop sign for the countries which have denied GE food aid (that food is not welcome in the country) and a blue sign and the wording
GMO free for the others (note that I decided not to use the wording
GMO banned)
I just looked it up though, and saw that the "GMO free" countries may, or have been, rejecting GE food in aid as well, so perhaps I should reconsider the symbolization...
Here is how the center did it in their original map: