dr. southwick who we met earlier is one of the many attendees. >> what we do is share our experiences, ourpractices and our expertise with each other so we can all become smarter and we can all apply what is working in other areas of the country. >> we are teaching to make sure people understand what are the causes of error and how to design systems to prevent errors. we have a long way to go. >> teaching patient safety is one thing, but doctor gandhi feels in order to create safer hospitals the medical culture must also change. >> we are working on creating a culture of change where everybody is comfortable speaking up and know they won't be blamed or punished but listened to you want your nurse to speak up. it is our job to empower them. if you don't see something that doesn't look right, say something. i'm capable of making mistakes. >> the families you have heard from tonight are determined to change things. after the death of this marine, it showed similar systemic failures nen the v.a. facility that treated him and the fallout included firing the hospital's chief of staff. >> studies

dr. southwick, with whom we met earlier, was one of the many attendees. >> so what we do is share our experiences, our best practices, and our expertise with each other, so that we can all become smarter and we can all apply what is working in other areas of the country. >> we're teaching patient safety in medical schools and nursing schools and other forums to make sure people understand what are the causes of error, how do you design systems to try to prevent error, et cetera. >> reporter: dr. tajil gandhi is an associate professor of medicine at harvard medical school. >> we still have a long way to go, but we have made progress. >> teaching patient safety is one thing, but dr. gandhi feels in order to create safer hospitals, the medical culture must also change. >> we're working on creating a culture of safety where everybody is comfortable, speaking up, and know that they won't be blamed or punished for speaking up, but actually will be listened to. >> you know, you want your nurse to speak up when they see something that doesn't look right. and it's our job as surgeons to empower them to sa