STARVING Chinese residents have been begging for food on social media as the world's strictest lowdown rules ban them from leaving their homes. It comes as draconian lockdown measures have been imposed in the city of Xi’an earlier this week, in a bid to fight the surge in Covid cases. On Monday, officials announced to the city's 13 million inhabitants that they can only leave home when invited to take part in a new round of mass Covid testing, or for medical emergencies. Previously, a member of each household was allowed to go out and buy food once every two...