As of May 22, 2009, 44 out of 205,000 federal inmates were subject to SAMs, 29 incarcerated on terrorism-related charges, 11 on violent crime-related charges and four on espionage charges. Well known individuals who have been under special administrative measures include American Taliban supporter John Walker Lindh and organized crime figure Frank Calabrese, Sr. Perhaps the best known application of this provision was the prosecution of attorney Lynne Stewart and interpreter Mohamed Yousry for passing messages between Omar Abdel-Rahman and his supporters in violation of a special administrative measure against communications. After her conviction, sentencing and re-sentencing to 10 years in prison, she appealed on freedom of speech grounds. Other cases include Robert Hanssen, Syed Fahad Hashmi (see below), and Dzhokhar Tsarnaev, Boston Marathon bomber, who never could speak privately to his attorneys.