A major consequence of invisible trade is that eventually the amount of invisibilities will exceed the payments for them. This means that the goods and services provided will be given, but payment for them is often neglected. This leads to a devastating deficit in funds. So the person or business supplying the goods can be in ruin, along with the person or business owing the money. This could threaten the economic strength of Texas.
The Nazis used the theory of evolution as justification for their persecution of the Jewish people. In their mind, Jewish people were "corrupting" the non-Jewish bloodstream. This is what led to the reprehensible eugenics movement.
The "BEST" answer for this question is......
*(A. American Landscapes <----:)
The Hungarian Revolution of 1956