The vice president's remarks come one week after he urgently cautioned against going to war with Iran during the vice presidential debate in Danville, Ky.
Talking about possible U.N. sanctions placed on Iran, he said, "These are the most crippling sanctions in the history of sanctions, period." However, he added that "we feel quite confident we could deal a serious blow to the Iranians."
Biden went on to say at the Las Vegas campaign event, "Well, let me tell you something ... we owe these families more than we can ever pay them."
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