Japanese prosecutors and a fair trade watchdog on Monday searched offices including the headquarters of major advertising agency Hakuhodo Inc. on suspicion of rigging bids for contracts related to test events for last year's Tokyo Olympics, just days after raiding another ad giant over the case.The latest searches, also covering Tokyu Agency Inc. and two event production companies, were conducted as investigations related to the Tokyo Olympics and Paralympics have expanded from a scandal involving the alleged receipt by a former games organizing committee executive, Haruyuki Takahashi, of 2…READ FULL ARTICLE