Amazon has expanded its U.S. Prime Air drone delivery service into three more places—San Antonio and Waco in Texas, and Pontiac in Michigan—bringing the total number of Prime Air locations to four, across three states. The expansion of Amazon’s Prime Air service to three more locations means that more Amazon Prime customers across the U.S. can get their orders within the advertised 60 minutes. However, last year, when Amazon launched its first drone delivery service in Texas, residents raised