the water. you have some rcommunication between that and the ship. you can command it to start a certain search pattern. >> your seeing things in real-time from the vehicle or is that just data you get once it comes back up? >> so once you recover the vehicle you go through this four hour process where you replace the battery, you reprogram it and download the data you collected on the previous mission. you take two to four hours to go through that data to see what the vehicle observed. so there's no live data link transmitting the information giving real-time feedback. >> do you have a sense -- the area that you're looking at based on the four pings that you did receive over time, how big an area your talking about and how long would it take the underwater vehicle the bluefin that you have to actually kind of scan that entire area? >> so it would take