The U.S. Air Force may offer leases longer than 50 years for artificial intelligence data centers at five bases, if those centers benefit national defense or "the public interest." In a response on Tuesday to an industry question on the terms of the leases, the Air Force Materiel Command's Installation and Mission Support Center (AFIMSC) at Joint Base San Antonio-Lackland, Texas, replied that each "lease can be for up to 50 years unless a longer term promotes national defense or…