The father of an Afghan immigrant accused of plotting one of the most serious security threats to the United States since the Sept 11 attacks pleaded not guilty on Friday to a charge that he lied to federal agents.
Mohammed Wali Zazi, 53, entered his not guilty plea at a brief court hearing in Denver, one day after he was indicted for lying to the FBI agents investigating his son, 24-year-old Najibullah Zazi.
The younger Zazi, a Denver airport shuttle driver, was indicted last month by a federal grand jury in New York on charges of plotting to explode bombs in the United States.
He has pleaded not guilty and is being held without bail.
Prosecutors said the younger Zazi took a bomb-making course at an al Qaeda training camp in Pakistan, had notes on how to make explosives on his laptop computer and acquired materials similar to those used in bomb attacks in London in 2005, buying acetone and hydrogen peroxide at beauty supply stores.
His father and a New York City imam, Ahmad Wais Afzali, 37, were both charged with lying to investigators.