A TV short starring Bermuda sprinter Tre Houston has been screened in the UK showing the runner competing for several different countries.The film, shown on Channel 4, highlights the contentious issue of North American athletes changing their nationalities to further their career.In recent months Jamaican Julian Reid, Anguilla’s Shara Procter and USA pair Shana Cox and Tiffany Ofili have all crossed the pond to compete for Great Britain.Houston, who like all Bermudian athletes is eligible to represent the UK, said he would never even consider making such a controversial move.The young athlete, who is shown proudly displaying the Union flag during the film, told The Royal Gazette: “(The film crew) asked me if I’d ever switch sides and I told them ‘no’ because Bermuda is where my heart is,” he said.“The TV piece was basically being directed to those athletes who are coming from the United States and switching nationalities to run for the GB team because they’re not able to make their own team,” said Houston, who represented the Island at last year’s Commonwealth Games in India.Video link: http://athletics.channel4.com/watch-now/key-moments/videoid=1230754/index.html#Video