The courtroom was guarded by several armed U.S. Marshals in fatigues. Spectators were kept to a minimum and only one pool reporter from The Associated Press was allowed in court. Other media watched proceedings on a closed circuit TV feed.
Federal authorities initially sought a two-year sentence for Youssef. Seiden argued for his client to be allowed to serve his term under home confinement, but the judge refused. Dugdale argued that was not sufficient punishment.
U.S. District Court Judge Christina Snyder accepted the plea agreement and immediately sentenced Youssef after he admitted to four of the eight alleged violations, including obtaining a fraudulent California driver's license. Prosecutors agreed to drop the other four allegations under the plea deal, which included four years of additional probation time.
Youssef, 55, was arrested in late September, just weeks after he went into hiding when the violence erupted. Enraged Muslims demanded severe punishment for Youssef, with a Pakistani cabinet minister offering $100,000 to anyone who kills him.
Youssef will spend his time behind bars at a Southern California prison. He previously served most of his 21-month prison sentence for using more than a dozen aliases and opening about 60 bank accounts to conduct a check fraud scheme, prosecutors said.
After he was released from prison, Youssef was barred from using computers or the Internet for five years without approval from his probation officer.
"This is a defendant who has engaged in a long pattern of deception," Dugdale said. "His dishonesty goes back years."