Rhetorical Analysis of techniques Elie Wiesel uses in his speech

Write an analysis of the rhetorical writing strategies and techniques Elie Wiesel uses in his speech - The Perils of Indifference, to achieve his purpose in his essay. Basically, does the Wiesel's choices (of rhetorical/literary devices in his argument effect the reader/audience and explain how and why? ). Basically, was his use of rhetorical devices in his speech effective or ineffective?