The New York Times, Room for Debate, April 1, 2009 by David Alan Sklansky
http://roomfordebate.blogs.nytimes.com/2009/04/01/when-prosecutors-step-over-the-line/
“These two roles can pull prosecutors in opposite directions. The habits of combat we encourage in prosecutors, and that they need if they are to succeed in hard-fought cases, can tempt them to be less than painstaking about their broader set of obligations—the requirements imposed on them, for example, to disclose all potentially exculpatory information to the defense.”