Here are the slides Barr used in his presentation: http://www.safetyresearch.net/Library/BarrSlides_FINAL_SCRUBBED.pdf http://www.safetyresearch.net/Library/Bar

Here are the slides Barr used in his presentation: http://www.safetyresearch.net/Library/BarrSlides_FINAL_SCRUBBED.pdf http://www.safetyresearch.net/Library/BarrSlides_FINAL_SCRUB...