Motoring Transport World NewsSelf-driving trucks begin mail delivery test for U.S. Postal ServiceBy Aliyu DANLADIMay 22, 2019 by By Aliyu DANLADIMay 22, 20190546 (Reuters/TBI Africa.com) The U.S. Postal Service on Tuesday started a two-week test transporting mail across three Southwestern states using self-driving trucks, a step forward in