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The International Olympic Committee (IOC) says eligibility will be determined by a 'once-in-a-lifetime' sex test, which would prevent transgender women and those with differences in sexual development (DSD) who have gone through male puberty from competing in women's events. We hear from former Olympic swimmer Sharron Davies who supports the move, and UN Special Rapporteur Alexandra Xanthaki who opposes it.

Also on the programme: Should foreign tourists visiting our museums be charged for entry? And the hunt is on in Hampshire for Samba, a nine-month-old capybara, who escaped Marwell Zoo over a week ago.