but, chief aguilar, did you want to say anything about that? >> on the issue of working with our mexican partners and our neighbor, i can tell you that after 32 years of service our relationship with mexico, overall, has never been better, whether it be with the military, with the ssp, with any other government agency that works with us, and that is what has brought us to where we are today. there has been a brighter delineation, if you will, of the border, that did in the past cause some problems of inadvertent entries of the mexican military into the u.s. and, frankly, us into mexico also. but that brighter delineation by way of the infrastructure that we have put in place, but more importantly the collaborative effort that the secretary spoke to just now, where we collaborate on the strategies, on the application of racehorses, on mirroring efforts in order to bring greater control of that border. as far as to your question about shots exchanged, i can't remember the last time that that happened. i can tell you that it has happened in the pa

i want to thank john morton and david aguilar, as well as the experts in this area who are here today. thank you. i am happy to welcome robert davis. he is a great community leader in the city of san jose. he is doing some important and novel things with the police department there. the association has been a great partner with the department of homeland security. we are proud the 56 big-city police chiefs that you represent and the more than 800,000 sworn officers that are present in those departments. thank you, chief. before i open it up for discussion, i would like to speak about some of the immigration and border-related challenges that law enforcement faces. first, let me begin by saying that border security and enforcement is primarily the responsibility of the federal government. unfortunately, for decades, we have not had an effective strategy that is border-wide. we have not devoted the attention, personnel, or resources that have been required to cover the border all the way from brownsville to san diego. from day one, the obama administration has taken its responsibility h