It turns out that President Biden is not the only president with a son in the news. Down in Colombia, recently elected President Gustavo Petro is getting questions about his son too. This is the story: Colombia's attorney general's office said on Friday it will begin an investigation into accusations that President Petro's oldest son took money from drug traffickers in exchange for including them in his father's peace efforts.Nicolas Petro, a lawmaker in Atlantico province, has said he has had nothing to do with the president's efforts to make peace or surrender deals with rebels and criminal gangs, and...