"This confusion, this ambiguity, is part of the problem here, " said Mr. Baucus, who has been working with Rep. Camp to devise a strategy for advancing a tax overhaul bill this year or next.
As the researchers note, this is actually a pretty tough problem, given that the natural ambiguity and cultural context of the language both have to be taken into consideration.
But the problem with that information is when you try to send it, ambiguity arises because it is very hard to express ideas like joy or fear in pictures alone.