Meghan Markle and Prince Harry are “innocents abroad” and “should be concerned” ahead of their trip to Colombia, according to former BBC royal correspondent Michael Cole. He joined Darren Grimes on GB News to discusses the couple’s South America trip which he fears is at risk of being “exploited”. The couple will visit the crime-ravaged country on Thursday, with stop offs scheduled in Bogota, Cartagena and Cali. Cole told GB News: “I think the Duke and Duchess of Sussex should be concerned. They have only their celebrity to sell and they must not sell it too cheaply. “Colombia at the moment ha…