From the essay "Dumb-dumb Bullets" in the July 2009 issue of Armed Forces Journal. I wouldn't have known about it had I not read about it in an endnote to the Flynn article.

Make no mistake, PowerPoint is not a neutral tool — it is actively hostile to thoughtful decision-making. It has fundamentally changed our culture by altering the expectations of who makes decisions, what decisions they make and how they make them. While this may seem to be a sweeping generalization, I think a brief examination of the impact of PowerPoint will support this statement.
Click on the link below to read the entire article.

http://www.afji.com/2009/07/4061641