Why can't independents vote in primaries?

Aprovision of the general agreement on tariffs and trade treaty (gatt)increased taxes on services between the us, mexico, and canada.reduced international tariffs on industrial goods by forty percent.increased us tariffs on agricultural products by forty percent.ended taxes on goods traded by the us, mexico, and canada.

In the wake of the civil war, compared to the south the north had sustained very little destruction. had to create a new labor system. had more economic challenges. had to repair damaged property.

Who was put in the concentration camps? and why