The Congress, of course, must rightly keep itself informed at all times of the progress of the program. However, there is certain information, as the Congress itself will readily recognize, which, in the interests of our own security and those of the nations that we are supporting, must of needs be kept in confidence.
Answer:
An expository essay is an essay in which the writer informs the reader about information. Like in your typical high school research papers. The method most commonly used when writing this type of essay is compare and contrast.