Air Force veteran Lindsay Gutierrez is a two-time living organ donor after giving a kidney to a fellow veteran and part of her liver to another recipient.
Unmanned ground vehicles mounted with life-size plastic coyotes are one idea proposed as part of a new effort to keep wildlife away from military aircraft.
Long stretches of the border are under the supervision of nearby military bases, empowering U.S. troops to detain people entering the country illegally.