Answer:
Desdemona doesn't want to admit to Othello that she lost the handkerchief because it has a lot of sentimental value and she feels horrible that she lost it.
I hope it's helpful!
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.
