An informant who made derogatory claims about President Joe Biden and his son Hunter has been arrested by the FBI after a grand jury charged him with false statements and obstruction, reported Politico’s Kyle Cheney on Thursday. Alexander Smirnov, who was identified as a confidential human source in the investigation, was arrested at Harry Reid International Airport in Las Vegas earlier this week, according to a statement released by the DOJ Thursday. According to the indictment, Smirnov falsely claimed to FBI agents that executives at the Ukrainian industrial company Burisma told him they hir…