What are the two chambers of Congress called?

Which of the following is NOT a disadvantage of using secondary sources?

A) The research discussed is at least one to two years old. B) They do not provide as many details as original research reports. C) They critique other research studies. D) They are generally published at least a year after completion.

Realists criticized United States involvement in the Vietnam War because

A. we didn't have sufficient national interests to warrant the cost in resources and manpower B. it was unwinnable C. it was a violation of the Monroe Doctrine D. there is no common border with Southeast Asia.