In the experiment capital gains and dividends are taxed as ordinary income and there is noexclusion for state and local bonds issued after December 31, 2012.
The large number of citizens abroad who work directly for the U.S. government, such as diplomats and military personnel, always have been barred by law from claiming the income exclusion, so its elimination would have little or no effect.
No-one expects Eduardo Rodriguez to solve Bolivia's entrenched problems - of widespread poverty, social exclusion, racial discrimination and regional divisions.