Federal prosecutors in New York say the father of admitted terrorist Najibullah Zazi now faces more charges.
The updated indictment, issued Tuesday, charges Mohammed Wali Zazi with obstruction of justice and other counts.
The son pleaded guilty to terrorism charges in February. A prosecutor said "al-Qaida leadership'' directed a foiled scheme to bomb New York City subways in 2009.
Najibullah Zazi is a former Colorado airport shuttle driver who attended high school in Queens.