SAC Capital Advisors' Steven A. Cohen called federal insider trading rules "very vague" and asked for an explanation of the SEC's basic rule about it in a newly revealed 2011 videotaped deposition that includes verbal sparring with the lawyer questioning him.

This clip, and three others, were obtained by PBS' Frontline and posted on the program's website. It says that while transcripts of the deposition have been reported previously, the video has not been publicly available until now.