Following a critical article about the Madoff firm in 2001 by Barron's, which raised questions about whether the secretive investment operation was legitimately generating returns, Mark Madoff, with Andrew watching nearby, addressed dozens of Madoff traders in the firm's offices, strongly arguing that the article was incorrect, and that Madoff's investment operation was legitimate, according to people who were there.
WSJ: Mark Madoff and the Fraud's Burden