caption: FILE - In this April 15, 2020, file photo, passengers from Wuhan arrive at the train station in Beijing. Getting into Wuhan was the easy part as new infections had fallen to almost zero and travel restrictions were relaxed. As a 76-day lockdown neared its end, journalists were allowed to return to the Chinese city where the coronavirus pandemic originated. But getting out was proving harder. The bureaucracy had yet to finalize how people would safely organize their return and three official documents were needed: A green health code, home neighborhood approval and a recent nucleic acid test.