United States March 9, 2017 8:01 am Country's First Robot Food Delivery Service Launches in DC A U.S. company has launched what it is calling the first fully robotic food delivery service in the U.S. US & World Videos 1:45 NYPD enters Columbia University in riot gear to clear protest 4:28 ‘Apples Never Fall' and ‘Jurassic Park' star Sam Neill reveals his real name 3:21 Katy Perry's surprising regret about cheeseburger Met Gala look 1:49 New guidelines say women should be screened every other year for breast cancer starting at 40 2:28 King Charles returns to public duties amid cancer diagnosis