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A few months out from the ·¹Çø®Ä«½Å¹ß=·¹Çø®Ä«½Å¹ß Tokyo Olympics, athletics is facing tough questions over the tension between the inevitable quest for innovation and the core principle of fair competition. Both the IAAF's rules and the record books are being challenged in a way not seen for years. And those in power are under intensifying pressure to do something about it.
In a bid to avoid on-field injustices and overcome human error in officiating, sports have tried to harness broadcasting advancements over the last decade.
Some, like goal-line technology in football which was approved in 2012, has proved a success. But others, most notably the video assistant referee system (VAR), has been hugely controversial, especially in the Premier League, where its first season of use has ·¹Çø®Ä«¹Ì·¯±Þ=·¹Çø®Ä«¹Ì·¯±Þ ·¹Çø®Ä«·¹Çø®Ä« ·¹Çø®Ä«·¹Çø®Ä« descended into farce over marginal offside decisions, sparking fury from fans and managers.