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spec: " The department has not conducted UAV flights anywhere along the border since its only operational Predator B crashed in April outside of Nogales , Ariz. " The U.S. Department of Defense has used UAVs in military operations since the 1950s to provide reconnaissance , surveillance and intelligence of enemy forces without risking the lives of an aircrew . Security , has tested UAVs along the Mexican border , and is considering using these surveillance planes permanently . The four regional institutions will undertake to exchange information and documentation on policies and on research ; to invite each other to their respective meetings on topics of common interest and to their mutual benefit ; and to identify areas for joint consideration and research . UHPP encourages minors to include a parent or another responsible adult in decision making regarding their sexual health and choices surrounding unintended pregnancies . The Earth Science Enterprise now has added UAVs to the stable of platforms available for airborne science and applications . We do not need our '' consciousness raised . For years , officials in the Army and Navy , which manage their own UAV programs , complained that the Air Force , whose leadership is dominated by pilots , has n't pursued UAV technologies aggressively enough . You and your family must obtain a medical clearance if your assignment is long-term , usually 2 years duration . But a [ n ] analysis of crash statistics shows that the number of accidents has gone up at intersections with the cameras , `` the Washington Post reports .