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Now Playing: 11-10-11 Marketplace

Republican presidential candidates participated in another debate last night. The football scandal at Penn State could cost the university in multiple ways off the field. Retailers are opening their doors even earlier for Black Friday. As online games company Zynga prepares to go public, it is asking some employees to give back their shares. And in the second part of a two-part series, Amy Scott looked at the tactics used by U.S. colleges to recruit Chinese students.