Read the following text and answer the question that follows.

You and I, as individuals, can, by borrowing, live beyond our means, but for only a limited period of time. Why, then, should we think that collectively, as a nation, we're not bound by that same limitation? We must act today in order to preserve tomorrow. And let there be no misunderstanding: We are going to begin to act, beginning today.
~Ronald Reagan

Identify the rhetorical device illustrated in the bold-faced sentence.

Asyndeton
Irony
Rhetorical question
Zeugma