In the run-up to his inauguration Maduro has accused his old foe, the United States, of plotting to overthrow him.He claimed that among a group of seven “mercenaries” arrested this week there was one senior FBI official.- US denies coup plot -The State Department said allegations of US involvement in a plot to overthrow Maduro were “categorically false.”Maduro has ruled Venezuela since 2013 and despite a sustained economic crisis that has seen seven million citizens leave the country, he shows no intention of relinquishing power.Pro-government militiamen paraded in Caracas this week…