to do enhanced biometric exit, employing that and using that as the platform for adding on the biomet rick. the plan is done from our standpoint. we're just working through the final nuts and bolt with his omb. >> why does it take so long to get it deployed? just the development of the technology? in other words, the fact that it takes four years to get it going, is that -- >> well, it's cost. it's the scope of the issue. we have so many ways that people can exit the united states. we're very different from other countries in that regard. and manpower, other resources, yes. >> what kind of impact do you think this will have on visa overstays, once you get it deployed? >> i think it will help us. although, we have already used our enhanced biographic to go backwards to identify overstays and to prioritize those that we want ice to really focus on finding and removing. >> can you give us any sort of previous -- specific, brief thumbnail sketch on how the system will work? >> i would prefer to do that in a classified setting, senator, and we would be able to do that, yes. >> understood. under