Najibullah Zazi's father, Afghan immigrant Mohammed Wali Zazi, who was previously charged with lying to the FBI as agents investigated his son, was indicted yesterday by a grand jury on charges of lying, formalizing the case against him (via Reuters). While the younger Zazi is accused of plotting what officials describe as the worst terror incident since 9/11, the older Zazi and a New York imam, Ahmad Wais Afzali, 37, were swept up by investigators for lying to them, though it is unclear if either was participating in the plot. Najibullah Zazi, meanwhile, may have tested homemade bombs at an unknown location, reports 7News. Federal investigators have also questioned two men: Adis Medunjanin, a Bosnian immigrant who met voluntarily with investigators for 14 hours, and Zarein Ahmedzay, a 24-year-old New York cab driver (via The Associated Press). Both men's photos were shown to Afzali, an imam at a Queens mosque accused of tipping off Najibullah Zazi.