House Republicans subpoena USA fencing chairman with history of supporting trans competitors in women's sports / Barclays chief mounts defence of ring-fencing as rivals push for abolition / Two charged with fencing stolen goods from South American crews suspected in athlete burglaries / Usmanov retained as world fencing boss despite sanctions / Swede duels with Putin's friend for world fencing presidency / Just in time for the Olympics, a new Canadian fencing movie offers intellectual thrills / 'Tenacity and will' guided Eleanor Harvey's lifelong journey to milestone fencing medal / Boxing and fencing hope Olympics can draw line under integrity controversies