Japanese prosecutors on Friday searched offices of ad giant Dentsu Inc. and an event company, and the home of a former Tokyo Olympic organizing committee senior official on suspicion of involvement in bid rigging for contracts related to test events ahead of last year's games.The searches, joined by Japan's fair trade watchdog, followed a widening sponsorship bribery scandal over the Tokyo Olympics and Paralympics, also involving a former executive of the now-defunct committee that resulted in the raid of Dentsu's headquarters in July.The Tokyo prosecutors' special investigation squad and t…READ FULL ARTICLE