The question of the US's presence is critical in many respects but most notably in that Bremer's infamous, corporatist 100 Orders will, in principle, be rescindable, when / if the US gets the hell out.
All of the Orders are despicable, across the board, but none more so than N° 81, which outlaws the use of native wheat seed, in favor of genetically modified varieties [you'll never guess who was breathing down Bremer's neck].
More on Order 81 here. As for the 99 others, see here and here.
A handful of seasons of gm wheat cultivation would suffice to irreperably pollute an 8000 year patrimony of wheat species.
