"You've got to give Mitt Romney credit," Biden told a crowd in the city of Waterloo.

"He's a job creator -- in Singapore, China, India. He's been very good at creating jobs overseas."

Biden then quoted the Post article, saying that while the practice was disruptive to members of the US workforce, outsourcing "has made US companies more nimble and profitable."

"I simply ask you, how's that nimble-profitable thing working for you all?" Biden asked.

"How's that nimble and profitable thing working for those eight million Americans who are out of work... just as a consequence of this recession?"