Burke was indicted Thursday on expanded federal corruption charges — including one count of racketeering, two counts of federal program bribery, two counts of attempted extortion, one count of conspiracy to commit extortion and eight counts of using interstate commerce to facilitate an unlawful activity. Federal prosecutors previously charged Burke with attempted extortion, alleging he had used his official position as alderman to extort property tax business for his law firm from a Burger King owner doing business in his ward, a criminal charge he has denied.