Forbes – The recent round of match fixing allegations causing anxiety in European football circles is a reminder that sport betting has become a real problem child for the gambling industry. Banned in most markets around the world, with the notable exceptions of the UK, France, Spain and Italy, it continues to be a huge illicit industry. According to sports data analysts Sportradar, worldwide sports betting revenues are now worth anywhere between $700-billion and $1-trillion a year, with only a tiny fraction of this amount passing through the coffers of national exchequeurs. About 70% of that trade is estimated to…