. >> dan and alyssa kopp are fighting crime with youtube. so how many cameras do you have here?a number of them. >> you don't want to say? >> we don't want to say. >> this video which has more than 40,000 hits shows a break-in at their atlanta home one year ago while at work. >> we were both at work and received a call from our alarm company that the alarm was going off. we told them to dispatch the police. we got home and found out our house had been broken in, our door had been kicked in and some items were missing including a flat screen tv, a laptop and digital camera. >> it was like fear and panic, and, you know, the moment you hope would never come and it was right there. >> fear and panic and also chance for filmmaking because dan and alyssa had installed a video surveillance system and caught the whole thing on tame. >> the police were pretty excited and they encouraged us to get it out to local news. to see if we could get it publicized to try and get an i.d., a tip, anything. >> for police, video surveillance is like the holy grail of crime fighting. why is this helpfu