This came from an article in a CDF publication by Dan Oliver, CDF Safety Coordinator, who concluded, "...we are all human beings and we all have feelings which can be deeply scarred by these traumatic incidents. So talk about it, grieve over it and know that your being there did make a difference."
Note: Excellent pamplet: "Prevention and Control of Stress Among Emergency Workers" (N7FAN: This is a scanned pdf, minus the cover. The site is a Spanish language site, and there is a brief Spanish preface in the document, but the rest is English)