after the massacre in april of 2007. for campuses and schools across the country, and how they could get ready and prepare, the early alert system to allow as many staff and students as possible, about a threat on campus. and, that model has been taken and used, in countless universities and schools across america today. alisyn: sending out everything to a blackberry, a cell phone, and as quickly as possible and, again, they are just being as direct and using an economy of words, here, person with gun reported near dittrich, as bill said, the dining hall, stay inside and secure doors and emergency personnel responding, call 911 for help and we haven't heard from the police yet about how they are responding or how widespread it is. bill: here's the timeline, it is now, 10:18, east coast time in blacksburg. at 9:47, virginia tech alert went out claiming a person was