fighting in ukraine, the bbc uncovers evidence of civilian killings, that could amount to war crimes. a convoy of buses carrying residents of the besieged southern ukrainian city of mariupol reaches the relative safety of the nearby city of zaporyzhzhia. workers at an amazon warehouse in the us have taken the unprecedented step of voting to set up a trade union. staff at the site in new york predicted that amazon workers elsewhere would follow suit. the online retailer has always fiercely opposed unionisation of its million—strong workforce. we can now speak tojohn logan, who's director of labor and employment studies at san francisco state university good to have you with us. were you surprised at what we are seeing, some of the scenes from new york? i seeing, some of the scenes from new york?— new york? i think everyone was very surprised — new york? i think everyone was very surprised and _ new york? i think everyone was very surprised and particularly l very surprised and particularly at the margin of victory. this is huge. there is no bigger prize for unions in the united