Any group looking to lower costs by encouraging competition would likely support free trade agreements. Free trade agreements encourage competition in markets.
I am not going to answer in a paragraph of 125 words, but I will give you the answer to the first question; The United States didn't want another country to fall to communism. They officially got involved after the attack of the Gulf of Tonkin (U.S destroyers were stationed there and a radio came in that said they had been fired upon by North Vietnamese forces). (45 words BTW).
<span>The bells on churchs and public meeting establishment rang the bells continuously to obtain the attention of the people that an important event had taken place. Other methods of celebration at the time was to fire a musket into the air.</span>