Why did the Iran-Contra affair of the 1980s cause controversy in the United States? The government refused to negotiate for the release of hostages held by Iran.
B
The government refused to provide weapons to support Iran in its war with Iraq.
C
The executive branch engaged in secret activity prohibited by Congress.
D
The executive branch supported a Marxist government in Nicaragua.

supplies had to travel a long distance across water on ships that were often attacked, so they did not reach europe

since most of current immigration into the u.s., both legal and illegal, is coming from latin america. it would be very difficult to imagine or rationalize a country my fellow citizens are trying desperately to flee into, would pose a threat to my prosperity or freedom. since the u.s. has a long history of intervention, but no record of permanent occupation, i would not feel oppression is the main objective.  

the largest free trade nation, along with the largest gdp in the world wanting to expand it's economic policy on us, and including us, could only be positive. the u.s. government has no interest in, or way of simply forcing american culture on us. and has no track record of it. other nations that adopted american social culture, or "americanization" did so voluntarily, mainly through the choice of allowing american businesses and u.s. citizens to come into their nations, as free operatives.

what was the significance of the plessy vs ferguson ruling and jim crow laws

answer the impact. plessy v. ferguson allowed 'separate but equal, also known as segregation, to become law in the united states