A self-driving taxi has no passengers, so it parks itself in a lot to reduce congestion and air pollution. After being hailed, the taxi heads out to pick up its passenger—and tragically strikes a pedestrian in a crosswalk on its way.A self-driving taxi has no passengers, so it parks itself in a lot to reduce congestion and air pollution. After being hailed, the taxi heads out to pick up its passenger—and tragically strikes a pedestrian in a crosswalk on its way.Other[#item_full_content]