Tokyo Olympic organizers at home and abroad are believed to have already shared information in 2018 on how to select companies running competition venues before biddings for pre-games test events started, a source close to the matter said Tuesday.The revelation involving the International Olympic Committee comes as Tokyo prosecutors have launched a probe into advertisement firms and event producers over alleged bid rigging for contracts related to test events held before last year's Summer Games.The prosecutors and Japan's fair trade watchdog suspect that Dentsu Inc. and other companies und…READ FULL ARTICLE